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Tre-Cool
May 26th, 2009, 12:37 AM
Does anyone have any diagrams, pinout schematics for the E38? I have the LS1 pinout but would like the e38 as well for running an electronic boost controller etc.
GMPX
May 26th, 2009, 11:21 AM
What do you need to monitor?
Tre-Cool
May 27th, 2009, 01:04 AM
engine rpm, tps, vss.

for a boost controller.
GMPX
May 27th, 2009, 10:49 AM
You might be in a little trouble as the E38 sends most of this data out on the CAN bus to the cluster.
Do you know how the boost controller works? Does it just switch the waste gate on / off or is it a duty cycle output?

Cheers,
Ross
Tre-Cool
May 29th, 2009, 02:51 AM
well i have a apexi avcr that i installed into my dads VU which i wired directly into the pcm wiring, so figured id ask about wiring it into a ve aswell as ive done a twin turbo install on my brothers ve.

I think i might just go a manual bleed valve instead. much cheaper anyway.

but i also have a l76 with an e38 from a wreck i might setup in a drag car.
GMPX
May 29th, 2009, 10:29 AM
I only asked because in the R&D dungeon we have an E38 COS that has two outputs that you can switch on / off under various conditions, but they are simple on / off, not PWM outputs.
If you just want to open / close the wastegate it would probably do the job very well.

Cheers,
Ross
eboggs_jkvl
June 2nd, 2009, 07:21 AM
Try this

http://www.ls2.com/forums/showthread.php?postid=6553040#post6553040


Elmer
Tre-Cool
June 16th, 2009, 01:52 PM
thought i'd update the thread. manual bleed was useless so installed the avcr.

wired up the tacho wire to the #1 coil wire for rpm. though now im wondering if it's possible to get the tps signal voltage.

Can someone let me know how it works on the e38? i believe as long as i get a signal between 0 ~ 5v it will work.

Above looks do-able?
http://www.ls2.com/boggs/LS2/Enginecontrols/enginecontrols21.JPG

And if it's possible to tap into vss, even if it's a wire off the ecm itself.
GMPX
June 16th, 2009, 02:16 PM
Do you want pedal position or blade position? They can be quite different at times.
Where do you buy printed GM manuals for late model cars? Looks like you have one there.
Tre-Cool
June 16th, 2009, 02:39 PM
dont really care if its blade or pedal. just as long as it will read 100% when the pedal is mashed.

i got that from the link eboggs posted.
GMPX
June 17th, 2009, 12:57 PM
In that case you want pedal position, not off the blade.
Tre-Cool
June 17th, 2009, 04:24 PM
In that case you want pedal position, not off the blade.
which wire would you advise to wire into? the 5 volt reference of the actual signal?
GMPX
June 18th, 2009, 10:51 AM
The 5V ref is just that, 5V all the time.
You need to tap in to the signal wire, but, this might cause loading issues and upset the sensor signal, if you fit it and then get TPS fault codes that will be the reason why.