PCM Conversion Information

[Taz]

Hello 1FastBrick,

Yes .... all Corvettes were DBW. Thanks for your patience on the DBW truck information, as you have discovered by now I try my best to accurately source information - so that we don't inadvertently lead each other astray on this Forum - based on assumption.

I found the traction control link to DBW in sub-2002 Gen III trucks odd - as 1999 to 2002 Camaros were exclusively DBC - and some where equipped with traction control.

I have never seen a sub-2002 non 8.1 L DBW truck (SUV) before .... most of the donor vehicles I use are pickups (not SUVs) ... still learn something everyday !


Regards,
Taz

[finiata]

Being this started as a swap friendly thread I have a direct pcm/engine question. The parts are: 06' L33 (5.3 aluminum Truck block) & an 06' e40 and GTO harness. These both run 24X & 1X but the GTO has the cam sensor on the front, L33 in the back. Do the two sensors work the same? Everything is good except RPM's. I currently have the can signal coming from the rear. This can be moved or deleted, seems like those who may know are here though.

mike

[doubledip]

Being this started as a swap friendly thread I have a direct pcm/engine question. The parts are: 06' L33 (5.3 aluminum Truck block) & an 06' e40 and GTO harness. These both run 24X & 1X but the GTO has the cam sensor on the front, L33 in the back. Do the two sensors work the same? Everything is good except RPM's. I currently have the can signal coming from the rear. This can be moved or deleted, seems like those who may know are here though.

mike

depending if you use front or rear cam sensor then decides how you wire your cam plug... front and rear cam sensors have different pin configuration...

but if you are having RPM problems then that sounds more like a crank sensor fault not cam.

cam sensor wired correctly means car starts fine.. wired incorrectly means hard to start and will make popping sounds on startup as it tries to figure out compression/exhauist strokes

[finiata]

Yes the 12v and signal are reversed between the front and rear. I keep coming back to the crank. I'm wondering if the e40 I have was actually setup as a 58t and not a GTO e40. Can it be switched from one to another?

[doubledip]

Yes the 12v and signal are reversed between the front and rear. I keep coming back to the crank. I'm wondering if the e40 I have was actually setup as a 58t and not a GTO e40. Can it be switched from one to another?

No E40 all 24x

is wiring correct.. you have 12V down at the sensor? you using a black sensor not grey/beige/cream in colour?

[finiata]

No E40 all 24x

is wiring correct.. you have 12V down at the sensor? you using a black sensor not grey/beige/cream in colour?

See. This is what confuses me. This thread has a file that says some of the e40's were indeed 58t, so what gives? Yep wiring is correct, yep got 12 on the blue/white wire and yep its the black sensor, tested the wiring and the sensor. If there is truly no 58t e40 I'm screwed and the motor will have to back out because its a reluctor wheel issue. I'm pretty much disgusted at this point.

thanks

[joecar]

LPE sells a 58x->24x module for converting the 58x pulsetrain to the equivalent 24x encoded pulsetrain for 411 and E40.

[joecar]

See the pdf in post #60 above: CKP/CMP reluctor info

[finiata]

Sorta muddied this thread I started another for this issue, I'll post there. thanks

[Taz]

See. This is what confuses me. This thread has a file that says some of the e40's were indeed 58t, so what gives?

Hello Finiata,

My apologies for the E40 confusion in this thread - as Doubledip stated E40's are 24x CKP only. This was one of the first threads I collaborated on when I joined the Forum. I contributed a lot of the LS1-B information - which in my mind was accurate at the time - although I still learn new things about the LS1-B PCM.

The rest of the information in the thread was from various contributors and sourced where possible.

There is a subsequent discussion in the thread regarding all LS4 engines having 24x CKP setups. What is not implicitly stated - based on this, and other information, is that E40s were only used on 24x CKP setups.

The prior belief that some of the LS2 / LS4 using the E40 had 58x CKP was inaccurate.


Regards,
Taz