Hello everybody,

I am working on 2006 Caprice LS1 harness. the car's owner is swapped the car engine to LS3 engine with Lingenfelter TRG-002 58x-24x Crank Sensor Trigger Conversion Module the car just running up for 2 to 3 seconds only after that the engine is shutoff.

I checked the map sensor wiring pinouts the 5v reference only reading 1.2v all time "key one, idle and WOT" and on HPTuners scanner reading 32kpa all time & I have P0641 code on scanner.

I checked the map sensor wiring from PCM to Map sensor plug it's connected perfect.

Please your help

Thanks in advance

 

Thanks it's fixed. It's a wiring issue.