PCM or not wired right

[LSXmyford]

My bro piddled around some, tested more wires and seems the neutral switch is fine, SHE CRANKS WITH THE KEY NOW, through the old wiring harness purple wire....STILL NO FIRE.

This rules out the NSW I believe, as it doesnt make any difference anyway, according to nelsons and everyone else.

He has the fuel pump relay connected to the gray wire that goes to the fuel pump, the relay can audibly be heard switching, as its supposed too. Rules that out.

He still smells fuel when he cranks it, crank the engine, get a strong smell of gas, lingers for a couple minutes...further verify this....PLUGS ARE NEW and WET.

Nelsons says its not the VATS, said the symptoms are something else, what I do not know? Still taking suggestions...still not convinced its not the VATS....as based on my understanding VATS kills the starter if theft is detected...we are getting nothing at the purple starter solenoid wire on the new pcm....so??? Is it possible 1 + 1 would equal 2


At this point not sure if they are sending a newly programmed pcm or not....hope so...as that should rule that out.

[468Blazer]

ok don't want to confuse anybody with conflicting info.

Truck will crank with key. Have power when truck is cranking through purple wire which goes to solenoid through starter relay,etc.

Getting like 11.4 volts from crank signal and cam signal. Tested wires for breaks everything is coming out good showing good lines.

Fuel pump is working and smell it very strong after cranking.

No bad fuses and all grounds are grounded.

Only thing I can think of is VATS are not turned off or PCM is bad. Not getting any codes back with scanner on diagnostic port although the red light to tell you there are codes is lit.

Hopefully I'll hear from or get another PCM from nelson next week.

[RedHeartbeat]

I believe the SES light being on is the default mode when the key is in the "on" position. It's supposed to turn off once the engine starts.

[468Blazer]

that makes sense.