Check Engine Light Due to Engine Misfire on Pontiac Sunfire

The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not illuminate. Diagnoses will be required to determine the cause and needed repair.

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Average mileage: 107,166 (11,000–205,000)
Engines affected: 2.2L 4 Cylinder, 2.4L 4 Cylinder
5 model years affected: 1999, 2002, 2003, 2004, more2005
13 people reported this problem
3 people shared problem details
2002 Pontiac Sunfire- 2.2L 4 Cylinder104,000
I have had this car a year now, not even. Put about 25,000 miles on it I am on coil pack #3 and module #6 from the zone. Car has been to 2 private shops and a dealer, No one can find anything wrong causing this. Now I have a misfire at 3000 plus RPM. Here we go again. It would really be a nice little car without this grief.
Drove away from the gas station without replacing gas cap, not sure if that was related to problem. After a few blocks, check engine light came on. Closed gas cap, but engine began running very rough, light remained on. Had check engine code diagnosed, was told that coilpack had failed - had to have it replaced.
2005 Pontiac Sunfire205,000
Lack of power.
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