0411 pcm wiring??

[onegonewild]

My intentions are to flash my pcm for the 2002 Express van with the 5.7L and currently my pcm is wired for the 4.3L. I have a subscription to AllData so obtaining wiring diagrams is no problem, but am i able to rearrange the wiring of the computer to match the 5.7L and add a few wires? As long as the wiring at the pcm matches, then the truck should be correct, right? Any help would be great!! Thanks

[ChipsByAl]

So are you saying that you are currently running the 0411 PCM with a 4.3? If so, just add the two extra wires from the PCM to the V8 style injector connector and you will be ready to go. If you are using another PCM, you should follow the wiring differences from the current configuration of the 4.3 to the 2002 Express Van 5.7.
Good luck,
AL

[onegonewild]

I am using the current 4.3L pcm. There are about 9 differences in pinout points between the two pcms. Do i re-wire the pcm to match the express van? Basicall there are injector pinouts on the 5.7L van that are different than the 4.3L but all other wiring pinouts are correct.

[ChipsByAl]

What year and type of vehicle are you working with?

[onegonewild]

Current vehicle is a 2001 S10 4.3L V6 with 4L60E trans. sorry, i should have said that initially.

[ChipsByAl]

From what I can see, there isn't too many hurdles. The Express didn't come with 4WD, so that could be an issue if you are. The injectors are in different locations, not just #'s 7 & 8. The 5.7 has 4 O2 sensors as does yours but they are in different locations, don't get them in the wrong location. There is an engine speed signal coming from the PCM to the IPC, however the cluster schematics show the Tachometer getting its info from Class II. Not sure which one actually does the driving.
Al