1996 Chevy Cavalier code PO302

1996 CHEVROLET CAVALIER
180,000 MILES • 4 CYL • FWD • AUTOMATIC
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TFC35
  • MEMBER
  • 7 POSTS
To many cars not enough time!!!! What is code po302 and what do we need to repair?
Jun 28, 2008 at 7:06 PM
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BLACKOP555
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 10,386 POSTS
p030* codes are failry comon, best thign to do is switch the spark plug, and plug wire wiht another cylinder.

reset code and wait, when it comes back does the code change or is it the same/ if it moves to the cylinder that you swapped the plug and wire change the plug and wire.

if it doesnt switch check for spark, fuel, and compression on that cylinder
best way to check is to remove and groudn spark plug on that cylinder while vehicle is running, does vehicle run rough or no change notted?
Jun 28, 2008 at 8:45 PM