Where is the PCM located on a 2002 Pontiac gran am 2.2
No power is going to the fuel pump rely
inside the dash behind the glovebox...honesty you should look at the battery ground as is connected to the rest of the car...this point (end of the 1/0 cable) is critical...welds itself with each start as it pulls over 300 cold cranking amps to start the engine...sadly they couple the needs of the ignition, fuel pump and dashboard, ECU----ON this leg of your ground from the battery~...use a wirebrush on the end of the 1/0 cable as it attaches to the frame/fender...thank you~
Get a New battery if yours is older than five years old (knock-off labels on top of battery)...with a clean, wirebrushed GROUND connection the ECU (and a new battery) will act normally then~
Hi I believe I have a issue with Ecm on my 2001 Pontiac grand am, have 3 codes p0341 p1404 and p0440 These other codes came up when I put it on a code scanner besides the 3 above. C1254, c1247,c1241, p1189 , u1040 c1221 c1222 c1225 and c1226. So I was told that my speed sensors where ok, I was told with all these codes it has to be the Ecm to replace first. Any thoughts. I just need to pass emissions at this point what should I do?
