Miatapower List Archive

This read-only message was archived from a public mail list.
Mail From: (email redacted)

Ray:
Would a wideband O2 sensor work with Link Mk2? If so would it improve the=20
accuracy of road tuning? If it won't work, what would be involved in adaptin=
g=20
it
to work?
Jim in Tucson

<snip>
With Ray's code it could be used, however I don't know if you need a
special prom to do it. I do know that the Haltech can use a true wideband
O2 though.

Mark

Mark,
I agree a hypothetical full Link for M2 would be best served with
Ray's code. =A0However, a full M2 Link may not be exactly like the
Mk 2 Link. =A0I'm not sure of all the differences between M1 and M2,
but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.

Certainly the logic within Ray's code would be portable, but the entire=20
Mk 2 code, or portions thereof, may have to be completely rewritten.

Be that as it may, a full Link even without Ray's code should allow
more accurate and safer tuning for M2s.

The weak link (pun intended) in the full Link, IMHO, is using the very=20
inaccurate OEM O2 sensor. =A0Could a wide-band sensor be used, or
adapted to be used, with a full Link? =A0If so, road tuning accuracy=20
would be greatly improved.=20

Jim in Tuscon
Waiting for full Link for M2...






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,=20
(email redacted) writes:

>=20
>=20
> If the M2 full link does come out it will likely be a while before code
> can be ported from Ray's codebase, I would not want to use the stock link
> codebase to be honest when Ray's code is out there.
>=20
> Mark
>=20
>=20
> On Fri, 27 Jul 2001, (email redacted) wrote:
>=20
> > Bill,
> > Any comments on the following posts on the forum?
> > Jim in Tucson
> >=20
> >=20
> > "I am not so sure that Link has not cracked the M2 code. I got an email=20
> from=20
> > AVO a few days ago stating that the full M2 Link ECU should be ready in=20
> 4-6.=20
> > If this is true it is very good news. I can't wait to see a full link fo=
r=20
> the=20
> > M2. I guess time will tell." =A0=A0=A0
> >=20
> > "Not trying to sound like a pessimist, but don't you think that if Link=20
> was=20
> > near releasing a FULL ECU for the M2, that they just might tell their=20
> > exclusive US supplier of the Link (Flyin' Miata) that it was coming RSN.=
=20
> Hey,=20
> > I hope for all those M2 owners out there with the Piggy that this is the=
=20
> > case...of course, there will be a few very pissed off recent M2 FM turbo=
=20
> > owners if this is the case, since they probably would have waited a bit=20
> for=20
> > their orders to see how the full ECU priced out. So, if Link is doing=20
> this,=20
> > and FM is not aware of its imminent release, that is some very bad=20
> business."
> > =A0=A0=A0=A0
> >=20
> >=20
> >=20
>=20

This read-only message was archived from a public mail list.
Mail From: "Ray" <(email redacted)>

The two aftermarket wideband adapters that I've looked at briefly both =
put out a 0-5v signal. This kind of signal can be scaled down to the =
0-1v range used by the current ECU software by adding two external =
resistors. The exact scaling would probably not be 5:1 though since it =
would be desirable to scale the voltage such that 12:1 A/F produced .85 =
volts (the middle of the linear region of the current table).
----- Original Message -----=20
From: (email redacted)=20
To: (email redacted) ; (email redacted)=20
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2


Ray:=20
Would a wideband O2 sensor work with Link Mk2? If so would it improve =
the=20
accuracy of road tuning? If it won't work, what would be involved in =
adapting=20
it=20
to work?=20
Jim in Tucson=20

<snip>=20
With Ray's code it could be used, however I don't know if you need a=20
special prom to do it. I do know that the Haltech can use a true =
wideband=20
O2 though.=20

Mark=20

Mark,=20
I agree a hypothetical full Link for M2 would be best served with=20
Ray's code. However, a full M2 Link may not be exactly like the=20
Mk 2 Link. I'm not sure of all the differences between M1 and M2,=20
but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.=20

Certainly the logic within Ray's code would be portable, but the =
entire=20
Mk 2 code, or portions thereof, may have to be completely rewritten.=20

Be that as it may, a full Link even without Ray's code should allow=20
more accurate and safer tuning for M2s.=20

The weak link (pun intended) in the full Link, IMHO, is using the very =

inaccurate OEM O2 sensor. Could a wide-band sensor be used, or=20
adapted to be used, with a full Link? If so, road tuning accuracy=20
would be greatly improved.=20

Jim in Tuscon=20
Waiting for full Link for M2...=20






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,=20
(email redacted) writes:=20




If the M2 full link does come out it will likely be a while before =
code=20
can be ported from Ray's codebase, I would not want to use the stock =
link=20
codebase to be honest when Ray's code is out there.=20

Mark=20


On Fri, 27 Jul 2001, (email redacted) wrote:=20

> Bill,=20
> Any comments on the following posts on the forum?=20
> Jim in Tucson=20
>=20
>=20
> "I am not so sure that Link has not cracked the M2 code. I got an =
email=20
from=20
> AVO a few days ago stating that the full M2 Link ECU should be =
ready in=20
4-6.=20
> If this is true it is very good news. I can't wait to see a full =
link for=20
the=20
> M2. I guess time will tell." =20
>=20
> "Not trying to sound like a pessimist, but don't you think that if =
Link=20
was=20
> near releasing a FULL ECU for the M2, that they just might tell =
their=20
> exclusive US supplier of the Link (Flyin' Miata) that it was =
coming RSN.=20
Hey,=20
> I hope for all those M2 owners out there with the Piggy that this =
is the=20
> case...of course, there will be a few very pissed off recent M2 FM =
turbo=20
> owners if this is the case, since they probably would have waited =
a bit=20
for=20
> their orders to see how the full ECU priced out. So, if Link is =
doing=20
this,=20
> and FM is not aware of its imminent release, that is some very bad =

business."=20
> =20
>=20
>=20
>=20

This read-only message was archived from a public mail list.
Mail From: "Brad Franks" <(email redacted)>

So it's feasable to adapt one for the Link application, but would =
scaling it down from 0-5v to 0-1v loose any of the increased accuracy =
and resolution gained?

If Shiv is on the list, can you answer the same about the Tec? I know =
Mark is becoming intimately familiar with the Haltec, what about it?

Brad
----- Original Message -----=20
From: Ray=20
To: (email redacted)=20
Sent: Saturday, July 28, 2001 10:41 PM
Subject: Re: Link and wide-band O2


The two aftermarket wideband adapters that I've looked at briefly both =
put out a 0-5v signal. This kind of signal can be scaled down to the =
0-1v range used by the current ECU software by adding two external =
resistors. The exact scaling would probably not be 5:1 though since it =
would be desirable to scale the voltage such that 12:1 A/F produced .85 =
volts (the middle of the linear region of the current table).
----- Original Message -----=20
From: (email redacted)=20
To: (email redacted) ; (email redacted)=20
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2


Ray:=20
Would a wideband O2 sensor work with Link Mk2? If so would it =
improve the=20
accuracy of road tuning? If it won't work, what would be involved in =
adapting=20
it=20
to work?=20
Jim in Tucson=20

<snip>=20
With Ray's code it could be used, however I don't know if you need a =

special prom to do it. I do know that the Haltech can use a true =
wideband=20
O2 though.=20

Mark=20

Mark,=20
I agree a hypothetical full Link for M2 would be best served with=20
Ray's code. However, a full M2 Link may not be exactly like the=20
Mk 2 Link. I'm not sure of all the differences between M1 and M2,=20
but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.=20

Certainly the logic within Ray's code would be portable, but the =
entire=20
Mk 2 code, or portions thereof, may have to be completely rewritten. =


Be that as it may, a full Link even without Ray's code should allow=20
more accurate and safer tuning for M2s.=20

The weak link (pun intended) in the full Link, IMHO, is using the =
very=20
inaccurate OEM O2 sensor. Could a wide-band sensor be used, or=20
adapted to be used, with a full Link? If so, road tuning accuracy=20
would be greatly improved.=20

Jim in Tuscon=20
Waiting for full Link for M2...=20






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,=20
(email redacted) writes:=20




If the M2 full link does come out it will likely be a while before =
code=20
can be ported from Ray's codebase, I would not want to use the =
stock link=20
codebase to be honest when Ray's code is out there.=20

Mark=20


On Fri, 27 Jul 2001, (email redacted) wrote:=20

> Bill,=20
> Any comments on the following posts on the forum?=20
> Jim in Tucson=20
>=20
>=20
> "I am not so sure that Link has not cracked the M2 code. I got =
an email=20
from=20
> AVO a few days ago stating that the full M2 Link ECU should be =
ready in=20
4-6.=20
> If this is true it is very good news. I can't wait to see a full =
link for=20
the=20
> M2. I guess time will tell." =20
>=20
> "Not trying to sound like a pessimist, but don't you think that =
if Link=20
was=20
> near releasing a FULL ECU for the M2, that they just might tell =
their=20
> exclusive US supplier of the Link (Flyin' Miata) that it was =
coming RSN.=20
Hey,=20
> I hope for all those M2 owners out there with the Piggy that =
this is the=20
> case...of course, there will be a few very pissed off recent M2 =
FM turbo=20
> owners if this is the case, since they probably would have =
waited a bit=20
for=20
> their orders to see how the full ECU priced out. So, if Link is =
doing=20
this,=20
> and FM is not aware of its imminent release, that is some very =
bad=20
business."=20
> =20
>=20
>=20
>=20

This read-only message was archived from a public mail list.
Mail From: "Ray" <(email redacted)>

Yes you'd lose the extra resolution, but you're not looking to gain =
resolution, rather to extend the range on the low-A/F end and to reduce =
the temperature sensitivity. In order to take advantage of the extra =
resolution, the internal sensor linearizing table would have to be =
disabled using a keypad switch (like the lambda on/off switch). When =
Bill starts stocking a wideband sensor I'll add the switch for it.
----- Original Message -----=20
From: Brad Franks=20
To: (email redacted)=20
Sent: Saturday, July 28, 2001 11:06 PM
Subject: Re: Link and wide-band O2


So it's feasable to adapt one for the Link application, but would =
scaling it down from 0-5v to 0-1v loose any of the increased accuracy =
and resolution gained?

If Shiv is on the list, can you answer the same about the Tec? I know =
Mark is becoming intimately familiar with the Haltec, what about it?

Brad
----- Original Message -----=20
From: Ray=20
To: (email redacted)=20
Sent: Saturday, July 28, 2001 10:41 PM
Subject: Re: Link and wide-band O2


The two aftermarket wideband adapters that I've looked at briefly =
both put out a 0-5v signal. This kind of signal can be scaled down to =
the 0-1v range used by the current ECU software by adding two external =
resistors. The exact scaling would probably not be 5:1 though since it =
would be desirable to scale the voltage such that 12:1 A/F produced .85 =
volts (the middle of the linear region of the current table).
----- Original Message -----=20
From: (email redacted)=20
To: (email redacted) ; (email redacted)=20
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2


Ray:=20
Would a wideband O2 sensor work with Link Mk2? If so would it =
improve the=20
accuracy of road tuning? If it won't work, what would be involved =
in adapting=20
it=20
to work?=20
Jim in Tucson=20

<snip>=20
With Ray's code it could be used, however I don't know if you need =
a=20
special prom to do it. I do know that the Haltech can use a true =
wideband=20
O2 though.=20

Mark=20

Mark,=20
I agree a hypothetical full Link for M2 would be best served with=20
Ray's code. However, a full M2 Link may not be exactly like the=20
Mk 2 Link. I'm not sure of all the differences between M1 and M2, =

but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.=20

Certainly the logic within Ray's code would be portable, but the =
entire=20
Mk 2 code, or portions thereof, may have to be completely =
rewritten.=20

Be that as it may, a full Link even without Ray's code should =
allow=20
more accurate and safer tuning for M2s.=20

The weak link (pun intended) in the full Link, IMHO, is using the =
very=20
inaccurate OEM O2 sensor. Could a wide-band sensor be used, or=20
adapted to be used, with a full Link? If so, road tuning accuracy =

would be greatly improved.=20

Jim in Tuscon=20
Waiting for full Link for M2...=20






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,=20
(email redacted) writes:=20




If the M2 full link does come out it will likely be a while =
before code=20
can be ported from Ray's codebase, I would not want to use the =
stock link=20
codebase to be honest when Ray's code is out there.=20

Mark=20


On Fri, 27 Jul 2001, (email redacted) wrote:=20

> Bill,=20
> Any comments on the following posts on the forum?=20
> Jim in Tucson=20
>=20
>=20
> "I am not so sure that Link has not cracked the M2 code. I got =
an email=20
from=20
> AVO a few days ago stating that the full M2 Link ECU should be =
ready in=20
4-6.=20
> If this is true it is very good news. I can't wait to see a =
full link for=20
the=20
> M2. I guess time will tell." =20
>=20
> "Not trying to sound like a pessimist, but don't you think =
that if Link=20
was=20
> near releasing a FULL ECU for the M2, that they just might =
tell their=20
> exclusive US supplier of the Link (Flyin' Miata) that it was =
coming RSN.=20
Hey,=20
> I hope for all those M2 owners out there with the Piggy that =
this is the=20
> case...of course, there will be a few very pissed off recent =
M2 FM turbo=20
> owners if this is the case, since they probably would have =
waited a bit=20
for=20
> their orders to see how the full ECU priced out. So, if Link =
is doing=20
this,=20
> and FM is not aware of its imminent release, that is some very =
bad=20
business."=20
> =20
>=20
>=20
>=20

This read-only message was archived from a public mail list.
Mail From: Mark Peugeot <(email redacted)>



There are WB O2's that generate an ECU Friendly 0-1v output, the Haltech
can accept it and so can the TEC-II, I would imagine that the same is
possible on the Link.

I sell them for $1250.00, which is not much more than I pay for them. They
are a little on the bulky side.

Mark

On Sat, 28 Jul 2001, Brad Franks wrote:

> So it's feasable to adapt one for the Link application, but would scaling it down from 0-5v to 0-1v loose any of the increased accuracy and resolution gained?
>
> If Shiv is on the list, can you answer the same about the Tec? I know Mark is becoming intimately familiar with the Haltec, what about it?
>
> Brad
> ----- Original Message -----
> From: Ray
> To: (email redacted)
> Sent: Saturday, July 28, 2001 10:41 PM
> Subject: Re: Link and wide-band O2
>
>
> The two aftermarket wideband adapters that I've looked at briefly both put out a 0-5v signal. This kind of signal can be scaled down to the 0-1v range used by the current ECU software by adding two external resistors. The exact scaling would probably not be 5:1 though since it would be desirable to scale the voltage such that 12:1 A/F produced .85 volts (the middle of the linear region of the current table).
> ----- Original Message -----
> From: (email redacted)
> To: (email redacted) ; (email redacted)
> Sent: Saturday, July 28, 2001 10:08 PM
> Subject: Link and wide-band O2
>
>
> Ray:
> Would a wideband O2 sensor work with Link Mk2? If so would it improve the
> accuracy of road tuning? If it won't work, what would be involved in adapting
> it
> to work?
> Jim in Tucson
>
> <snip>
> With Ray's code it could be used, however I don't know if you need a
> special prom to do it. I do know that the Haltech can use a true wideband
> O2 though.
>
> Mark
>
> Mark,
> I agree a hypothetical full Link for M2 would be best served with
> Ray's code. However, a full M2 Link may not be exactly like the
> Mk 2 Link. I'm not sure of all the differences between M1 and M2,
> but the OEM ECU is different so it stands to reason that a
> replacement would also be different.
>
> Certainly the logic within Ray's code would be portable, but the entire
> Mk 2 code, or portions thereof, may have to be completely rewritten.
>
> Be that as it may, a full Link even without Ray's code should allow
> more accurate and safer tuning for M2s.
>
> The weak link (pun intended) in the full Link, IMHO, is using the very
> inaccurate OEM O2 sensor. Could a wide-band sensor be used, or
> adapted to be used, with a full Link? If so, road tuning accuracy
> would be greatly improved.
>
> Jim in Tuscon
> Waiting for full Link for M2...
>
>
>
>
>
>
> In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,
> (email redacted) writes:
>
>
>
>
> If the M2 full link does come out it will likely be a while before code
> can be ported from Ray's codebase, I would not want to use the stock link
> codebase to be honest when Ray's code is out there.
>
> Mark
>
>
> On Fri, 27 Jul 2001, (email redacted) wrote:
>
> > Bill,
> > Any comments on the following posts on the forum?
> > Jim in Tucson
> >
> >
> > "I am not so sure that Link has not cracked the M2 code. I got an email
> from
> > AVO a few days ago stating that the full M2 Link ECU should be ready in
> 4-6.
> > If this is true it is very good news. I can't wait to see a full link for
> the
> > M2. I guess time will tell."
> >
> > "Not trying to sound like a pessimist, but don't you think that if Link
> was
> > near releasing a FULL ECU for the M2, that they just might tell their
> > exclusive US supplier of the Link (Flyin' Miata) that it was coming RSN.
> Hey,
> > I hope for all those M2 owners out there with the Piggy that this is the
> > case...of course, there will be a few very pissed off recent M2 FM turbo
> > owners if this is the case, since they probably would have waited a bit
> for
> > their orders to see how the full ECU priced out. So, if Link is doing
> this,
> > and FM is not aware of its imminent release, that is some very bad
> business."
> >
> >
> >
> >
>
>
>
>
>

This read-only message was archived from a public mail list.
Mail From: "Shiv Pathak" <(email redacted)>

Like the Haltec and Link, the TEC-II accepts a 0-1v O2 sensor input.
However, unlike the others, it internally amplifies it to 0-5 volts before
running it through its calculations. I suppose it is possible to eliminate
this amplification stage and read directly off a 0-5v input. Especially
since the software enables the user to set their own O2 sensor parameters
(ie. what voltages [0 to 5v] equals what A/F ratios [9:1 to 20:1).

However, I have not done this personally. Instead I use my Autronic
portable multi-sensor wide band gas analyzer when I tune high output cars.
It offers 0-5v, 5-0v, 1-0v and 0-1v outputs. The latter being fed directly
into the TEC-II. Then, I put the desired A/F numbers in the TEC's A/F ratio
target table and turn on Autotuning. I then drive around and let the TEC
dial in its fuel table. It's quick and dirty, but surprisingly effective.
Gets me to the 90% mark with little hassle. The last 10% is found on the
dyno through ignition mapping and fine fuel tuning. Big time-saver. It's
the difference between being able to tune 10 cars in one weekend versus 3 or
4.

I just started renting this unit out to my customers, on a week by week
basis. It comes with its own bright LED display, cigarette lighter power
source and a bunch of friendly display options. It is proving to be really
helpful for those who understand that standard o2 sensors are best ignored
after a certain point.

Just my 2c,
shiv

----------
From: "Brad Franks" <(email redacted)>
To: <(email redacted)>
Subject: Re: Link and wide-band O2
Date: Sat, Jul 28, 2001, 11:06 PM


So it's feasable to adapt one for the Link application, but would scaling it
down from 0-5v to 0-1v loose any of the increased accuracy and resolution
gained?

If Shiv is on the list, can you answer the same about the Tec? I know Mark
is becoming intimately familiar with the Haltec, what about it?

Brad
----- Original Message -----
From: Ray <mailto:(email redacted)>
To: (email redacted) <mailto:(email redacted)>
Sent: Saturday, July 28, 2001 10:41 PM
Subject: Re: Link and wide-band O2

The two aftermarket wideband adapters that I've looked at briefly both put
out a 0-5v signal. This kind of signal can be scaled down to the 0-1v range
used by the current ECU software by adding two external resistors. The
exact scaling would probably not be 5:1 though since it would be desirable
to scale the voltage such that 12:1 A/F produced .85 volts (the middle of
the linear region of the current table).
----- Original Message -----
From: (email redacted) <mailto:(email redacted)>
To: (email redacted) <mailto:(email redacted)> ; (email redacted)
<mailto:(email redacted)>
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2

Ray:
Would a wideband O2 sensor work with Link Mk2? If so would it improve the
accuracy of road tuning? If it won't work, what would be involved in
adapting
it
to work?
Jim in Tucson

<snip>
With Ray's code it could be used, however I don't know if you need a
special prom to do it. I do know that the Haltech can use a true wideband
O2 though.

Mark

Mark,
I agree a hypothetical full Link for M2 would be best served with
Ray's code. However, a full M2 Link may not be exactly like the
Mk 2 Link. I'm not sure of all the differences between M1 and M2,
but the OEM ECU is different so it stands to reason that a
replacement would also be different.

Certainly the logic within Ray's code would be portable, but the entire
Mk 2 code, or portions thereof, may have to be completely rewritten.

Be that as it may, a full Link even without Ray's code should allow
more accurate and safer tuning for M2s.

The weak link (pun intended) in the full Link, IMHO, is using the very
inaccurate OEM O2 sensor. Could a wide-band sensor be used, or
adapted to be used, with a full Link? If so, road tuning accuracy
would be greatly improved.

Jim in Tuscon
Waiting for full Link for M2...






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time,
(email redacted) writes:



If the M2 full link does come out it will likely be a while before code
can be ported from Ray's codebase, I would not want to use the stock link
codebase to be honest when Ray's code is out there.

Mark


On Fri, 27 Jul 2001, (email redacted) wrote:

> Bill,
> Any comments on the following posts on the forum?
> Jim in Tucson
>
>
> "I am not so sure that Link has not cracked the M2 code. I got an email
from
> AVO a few days ago stating that the full M2 Link ECU should be ready in
4-6.
> If this is true it is very good news. I can't wait to see a full link for
the
> M2. I guess time will tell."
>
> "Not trying to sound like a pessimist, but don't you think that if Link
was
> near releasing a FULL ECU for the M2, that they just might tell their
> exclusive US supplier of the Link (Flyin' Miata) that it was coming RSN.
Hey,
> I hope for all those M2 owners out there with the Piggy that this is the
> case...of course, there will be a few very pissed off recent M2 FM turbo
> owners if this is the case, since they probably would have waited a bit
for
> their orders to see how the full ECU priced out. So, if Link is doing
this,
> and FM is not aware of its imminent release, that is some very bad
business."
>
>
>
>

This read-only message was archived from a public mail list.
Mail From: "Jess Gypin" <(email redacted)>

Re: Link and wide-band O2I have done a little research on this and there =
is a sensor out there that would work plug and play for the stock O2 =
sensor. Most of the wideband O2 sensors that are on the market are made =
by only 2 companys. There is the NTK and the Bosch LSM-11. The LSM-11 is =
the only one that is plug and play for the stock O2 sensor. The nice =
part is that it is accurate in the range that the stock narrow band is =
and also will work outside of the narrow bands window. You need to to =
temperature compensation based on a table to calculate the O2. Just like =
the stocker, as it heats, the voltage will change. But it does so in a =
manner that is known and the AF can be very accurately measured from it. =
And they are very cheap in comparison to most others. About $140 retail. =
Most of the Honda LEV vehicles use a version of this sensor. A person =
could buy the LSM-11 UEGO and it would be plug and play. If there was a =
way to measure the voltage and temp from the sensor, then it would be a =
matter of playing that through the appropriate hardware for conversion. =
There are several commercial AF meters out there that use this sensor. =
Beats the hell out of $1200 for the NTK. If you buy the NTK directly =
from them, you can get the sensor and the little black box for the =
conversion of the signal from them for about 1/3 the cost, but you must =
sign an agreement that says you will not use it for AF measurement :-). =
It is not plug and play. I have more technical details on how all of =
this works, but I think you get the idea.

Jess
----- Original Message -----=20




----- Original Message -----=20
From: Ray <mailto:(email redacted)> =20
To: (email redacted) <mailto:(email redacted)> =20
Sent: Saturday, July 28, 2001 10:41 PM
Subject: Re: Link and wide-band O2

The two aftermarket wideband adapters that I've looked at briefly =
both put out a 0-5v signal. This kind of signal can be scaled down to =
the 0-1v range used by the current ECU software by adding two external =
resistors. The exact scaling would probably not be 5:1 though since it =
would be desirable to scale the voltage such that 12:1 A/F produced .85 =
volts (the middle of the linear region of the current table).

----- Original Message -----=20
From: (email redacted) <mailto:(email redacted)> =20
To: (email redacted) <mailto:(email redacted)> ; =
(email redacted) <mailto:(email redacted)> =20
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2

Ray:=20
Would a wideband O2 sensor work with Link Mk2? If so would it =
improve the=20
accuracy of road tuning? If it won't work, what would be =
involved in adapting=20
it=20
to work?=20
Jim in Tucson=20

<snip>=20
With Ray's code it could be used, however I don't know if you =
need a=20
special prom to do it. I do know that the Haltech can use a true =
wideband=20
O2 though.=20

Mark=20

Mark,=20
I agree a hypothetical full Link for M2 would be best served =
with=20
Ray's code. However, a full M2 Link may not be exactly like the =

Mk 2 Link. I'm not sure of all the differences between M1 and =
M2,=20
but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.=20

Certainly the logic within Ray's code would be portable, but the =
entire=20
Mk 2 code, or portions thereof, may have to be completely =
rewritten.=20

Be that as it may, a full Link even without Ray's code should =
allow=20
more accurate and safer tuning for M2s.=20

The weak link (pun intended) in the full Link, IMHO, is using =
the very=20
inaccurate OEM O2 sensor. Could a wide-band sensor be used, or=20
adapted to be used, with a full Link? If so, road tuning =
accuracy=20
would be greatly improved.=20

Jim in Tuscon=20
Waiting for full Link for M2...=20






In a message dated 7/27/01 8:37:00 AM US Mountain Standard Time, =

(email redacted) writes:=20




If the M2 full link does come out it will likely be a while =
before code=20
can be ported from Ray's codebase, I would not want to use the =
stock link=20
codebase to be honest when Ray's code is out there.=20

Mark=20


On Fri, 27 Jul 2001, (email redacted) wrote:=20

> Bill,=20
> Any comments on the following posts on the forum?=20
> Jim in Tucson=20
>=20
>=20
> "I am not so sure that Link has not cracked the M2 code. I =
got an email=20
from=20
> AVO a few days ago stating that the full M2 Link ECU should =
be ready in=20
4-6.=20
> If this is true it is very good news. I can't wait to see a =
full link for=20
the=20
> M2. I guess time will tell." =20
>=20
> "Not trying to sound like a pessimist, but don't you think =
that if Link=20
was=20
> near releasing a FULL ECU for the M2, that they just might =
tell their=20
> exclusive US supplier of the Link (Flyin' Miata) that it was =
coming RSN.=20
Hey,=20
> I hope for all those M2 owners out there with the Piggy that =
this is the=20
> case...of course, there will be a few very pissed off recent =
M2 FM turbo=20
> owners if this is the case, since they probably would have =
waited a bit=20
for=20
> their orders to see how the full ECU priced out. So, if Link =
is doing=20
this,=20
> and FM is not aware of its imminent release, that is some =
very bad=20
business."=20
> =20
>=20
>=20
>=20

This read-only message was archived from a public mail list.
Mail From: "Jess Gypin" <(email redacted)>

Re: Link and wide-band O2Plug and play, plug and play, plug and play,

Geeeeez I should have my coffee first before typing.

Jess
----- Original Message -----=20
From: Jess Gypin=20
To: (email redacted)=20
Sent: Sunday, July 29, 2001 7:02 AM
Subject: Re: Link and wide-band O2


I have done a little research on this and there is a sensor out there =
that would work plug and play for the stock O2 sensor. Most of the =
wideband O2 sensors that are on the market are made by only 2 companys. =
There is the NTK and the Bosch LSM-11. The LSM-11 is the only one that =
is plug and play for the stock O2 sensor. The nice part is that it is =
accurate in the range that the stock narrow band is and also will work =
outside of the narrow bands window. You need to to temperature =
compensation based on a table to calculate the O2. Just like the =
stocker, as it heats, the voltage will change. But it does so in a =
manner that is known and the AF can be very accurately measured from it. =
And they are very cheap in comparison to most others. About $140 retail. =
Most of the Honda LEV vehicles use a version of this sensor. A person =
could buy the LSM-11 UEGO and it would be plug and play. If there was a =
way to measure the voltage and temp from the sensor, then it would be a =
matter of playing that through the appropriate hardware for conversion. =
There are several commercial AF meters out there that use this sensor. =
Beats the hell out of $1200 for the NTK. If you buy the NTK directly =
from them, you can get the sensor and the little black box for the =
conversion of the signal from them for about 1/3 the cost, but you must =
sign an agreement that says you will not use it for AF measurement :-). =
It is not plug and play. I have more technical details on how all of =
this works, but I think you get the idea.

Jess
----- Original Message -----=20




----- Original Message -----=20
From: Ray <mailto:(email redacted)> =20
To: (email redacted) <mailto:(email redacted)> =20
Sent: Saturday, July 28, 2001 10:41 PM
Subject: Re: Link and wide-band O2

The two aftermarket wideband adapters that I've looked at =
briefly both put out a 0-5v signal. This kind of signal can be scaled =
down to the 0-1v range used by the current ECU software by adding two =
external resistors. The exact scaling would probably not be 5:1 though =
since it would be desirable to scale the voltage such that 12:1 A/F =
produced .85 volts (the middle of the linear region of the current =
table).

----- Original Message -----=20
From: (email redacted) <mailto:(email redacted)> =20
To: (email redacted) <mailto:(email redacted)> ; =
(email redacted) <mailto:(email redacted)> =20
Sent: Saturday, July 28, 2001 10:08 PM
Subject: Link and wide-band O2

Ray:=20
Would a wideband O2 sensor work with Link Mk2? If so would it =
improve the=20
accuracy of road tuning? If it won't work, what would be =
involved in adapting=20
it=20
to work?=20
Jim in Tucson=20

<snip>=20
With Ray's code it could be used, however I don't know if you =
need a=20
special prom to do it. I do know that the Haltech can use a =
true wideband=20
O2 though.=20

Mark=20

Mark,=20
I agree a hypothetical full Link for M2 would be best served =
with=20
Ray's code. However, a full M2 Link may not be exactly like =
the=20
Mk 2 Link. I'm not sure of all the differences between M1 and =
M2,=20
but the OEM ECU is different so it stands to reason that a=20
replacement would also be different.=20

Certainly the logic within Ray's code would be portable, but =
the entire=20
Mk 2 code, or portions thereof, may have to be completely =
rewritten.=20

Be that as it may, a full Link even without Ray's code should =
allow=20
more accurate and safer tuning for M2s.=20

The weak link (pun intended) in the full Link, IMHO, is using =
the very=20
inaccurate OEM O2 sensor. Could a wide-band sensor be used, =
or=20
adapted to be used, with a full Link? If so, road tuning =
accuracy=20
would be greatly improved.=20

Jim in Tuscon=20
Waiting for full Link for M2...=20






In a message dated 7/27/01 8:37:00 AM US Mountain Standard =
Time,=20
(email redacted) writes:=20




If the M2 full link does come out it will likely be a while =
before code=20
can be ported from Ray's codebase, I would not want to use =
the stock link=20
codebase to be honest when Ray's code is out there.=20

Mark=20


On Fri, 27 Jul 2001, (email redacted) wrote:=20

> Bill,=20
> Any comments on the following posts on the forum?=20
> Jim in Tucson=20
>=20
>=20
> "I am not so sure that Link has not cracked the M2 code. I =
got an email=20
from=20
> AVO a few days ago stating that the full M2 Link ECU =
should be ready in=20
4-6.=20
> If this is true it is very good news. I can't wait to see =
a full link for=20
the=20
> M2. I guess time will tell." =20
>=20
> "Not trying to sound like a pessimist, but don't you think =
that if Link=20
was=20
> near releasing a FULL ECU for the M2, that they just might =
tell their=20
> exclusive US supplier of the Link (Flyin' Miata) that it =
was coming RSN.=20
Hey,=20
> I hope for all those M2 owners out there with the Piggy =
that this is the=20
> case...of course, there will be a few very pissed off =
recent M2 FM turbo=20
> owners if this is the case, since they probably would have =
waited a bit=20
for=20
> their orders to see how the full ECU priced out. So, if =
Link is doing=20
this,=20
> and FM is not aware of its imminent release, that is some =
very bad=20
business."=20
> =20
>=20
>=20
>=20