1996 Pontiac Bonneville p0303

1996 PONTIAC BONNEVILLE
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SHLOGSTER
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Engine Performance problem
1996 Pontiac Bonneville 6 cyl Two Wheel Drive Automatic

i have a 1996 bonnie and its coming up with the code p0303(cylinder 3 missfire). what would be a cause/solution for this?
Feb 8, 2010 at 2:16 PM
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TOOOMANYTOYS
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Could be a number of things. What is the condtion of the spark plugs and wires. If they are old they should be changed either way. Is there spark at that cylinder?
Feb 8, 2010 at 2:25 PM
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SHLOGSTER
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spark plugs and wires were replaced about 6-8 months ago. never had a problem with it until i moved from new jersey to wisconsin. could the cold weather be a part of it?
Feb 9, 2010 at 3:32 PM
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TOOOMANYTOYS
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What kind of fuel are you running in wisconsin. Might want to pull that injector and see if its clogged, and swap it with an.other injector to see if the misfire travels to another cylinder
Feb 9, 2010 at 7:53 PM