Hello, 01 pontiac Grand Prix gtx. 3.8 Bucks and kicks when you give it some throttle. Scanner shows miss fire on all cyc when it does it. Have changed cam and crank sensors, control module, plugs,

Asked by May 20, 2014 at 01:43 PM about the 2001 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

Wires, coil packs, egr, PVC valve,
fuel pressure is 45 volume is qt in 15
sec. No codes.

3 Answers

4,505

check the throttle position sensor.

3,695

Have your catalytic converter checked. If its plugged it will do that.

Fixed it. Was the MAF sensor

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