This started 2 wks ago, eventually would take 2-3 hrs before starting again.
I checked all the relays and fuses ( did manual power supply to relays , all clicked when making contact ).
Installed new ECM no div.
Changed out the camshaft and crank sensors No Div.
Put old ECM back. No Div.
Swopped old ECM with new ECM. NO DIVERENCE....

Motor seem to loose electrical supply to coils, however all other electrics works . Windows, lights etc.

What do I try next.
Joe.

try unplugging the MAF sensor on top of TB

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am

Try that, no go. also pulled all the other connectors and try starter but nothing changed.
also noted my radio is not working , going to see if there is a fuse in it.
Starter motor runs like normal but no power to the coils.
even tried another key to see if chip is faulty but no go.

ok, so the original PCM is in and a new ICM - did you check the power and grounds to ICM - see they are snug and rust free.

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am

checked and clean the ground connections on both sides on floorboard. All seem good.

ok, I would go through this diagnostic: dont throw parts at her until you pinpoint the issue - save your money

https://easyautodiagnostics.com/gm/3.8L ... sor-test-1

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am