1998 LS1 to 2000+ LS1 conversion?

[joecar]

Try logging data for various sensors... and check for DTC's.

[Dale]

ok. I downloaded an 02lsx pinout, and compared to my 02vortec pinout.

Main differences seem to be which injector is plugged where. Also, the Lsx has coilpacks which vortec doesnt. There are a few other minor things like egr, airpumps, etc that one has, other doesnt, etc. But all main sensors plug into the same spots.

[KAZ MotorSports]

Where is the back-flip emoticon??

I have comms! I have fire! I feel like I have it all right now!!

THANK YOU TO ALL THAT HELPED!!!

This one took much longer than it should due to my tired brain yesterday and having to back-track today, but you guys helped me emmensely!!

Beers are on me if any of you are in the CO Springs area!

My gracious and sincere thanks,
-Kenny

[joecar]

Cool...

What ended up being the problem (I want to mentally file away for future reference)...?

[Dale]

Congrats!!

Another for future reference.

LS1 to L31 differences.......

[KAZ MotorSports]

In Al's .doc at the bottom it states that Red C1-60 BRN, Blue C2-19 PNK (PCM IGN Feed), C2-58 PPL (Serial Data), and C2-20 ORN (PCM BAT Feed) remain in the same locations. I labeled them as stated above and plugged everything in...not paying attention to the COLOR code swap, just putting them to those pin locations.

I put these in there proper place and wah lah. Tired brain fart I guess. Now it is time to play!

[Dale]

ok, so to add to more confusion.

I have found out that there is a 7.4l(L29) motor that uses the 0411 with the same OS as the LS1 and L31.

But yet the pinouts are different. Even inside of that, depending upon what the L29 was issued in, the crank trigger, and pinout is different. So it goes deeper then ECM and OS.

[joecar]

Hmmm... so the calibration binds the pinout.

[ChipsByAl]

Dale do you have a copy of the tune file or VIN from this other 7.4 (L29)engine?
Al

[MICK]

Hmmm... so the calibration binds the pinout.

Hay Joe,

There is a parameter table called installed options matrix which is tied into the platform code that has much to do with the pin out options. The platform code is number from 1 to 10 and on the other axis there is a swag of options to either enable or disable.

You find things like the lean cruise option and a few other things in there.

This is one area that will change the pin out in a PCM.

Chees

Mick