MAP sensor wiring

[DCarr511]

Hello all ... first time poster here .....

I have a 2001 Grand AM w/ 3400. A few weeks back it started to intermittenly loose the signal from the MAP sensor to the PCM. Now it has lost it all together. It has 5 volts going into and a reference voltage coming out but its not reaching the PCM.

I need to find out which pin it is at the PCM along with any other information in regards to this anyone has to share.

Thanks,
Duane

[DCarr511]

Well found the problem .. Green " return " wire was loose at the connection near the alternator

[Knifeblade]

Cool deal, the wiring on the GA's can be very irritating to chase, glad ya found it.