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Old 08-14-2017, 10:17 PM   #5
GAGT - Member
AKA: Curt
Join Date: Jun 2005
Location: Winnipeg Manitoba
Age: 47
Posts: 75
Vehicle: 2002 Grand Am GT Sedan
curtpank Still kinda new, but learning
well, I changed the ICM this evening but it didn't solve the problem. Same thing: I start the car, let it idle and after about a minute there is a "ping" and it stalls. Then it cannot be restarted again until it cools off (it will start for a second but then backfire and stall immediately). So it's definitely heat-related. It's almost like something is trying to turn on.

So at this point I have changed the ICM, ignition switch, ignition key lock cylinder, spark plugs, wires, alternator and battery.

all I have left is: 1) the coil packs themselves, which looked fine when I took them off to change the ICM, 2) CKP sensor, and 3) the fuel pressure regulator in case it's a fuel thing. I guess tomorrow I'll test the fuel pressure.

Would a bad coil pack make the car stall like this? There are three packs so I figure losing one wouldn't completely stall it....

I just know it's some simple thing but there are still no CELs
"Not Stock and Four Smoking Barrels"

Dr. Speed CAI; WOT-Tech ported UIM and LIM; Billet 65mm Throttle body; S&S headers, downpipe and cat; Borla cat-back; custom PCM tune; front heated seats; altezza clear tails; 18" Core Racing Evo rims; 225/40ZR18 BF Goodrich G-Force KDW2 tires
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