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Old 04-15-2011, 12:51 PM   #1
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Bad heads?

Ok so I have a 99gt and my service engine light came on again. I ran the codes and I am getting the same code p0303 misfire. This is the third time this has happened. My question is do I have bad heads. I've replace the spark plugs and coils 2 twice. MAde sure they are tight. I also just had my clutch replaced (spec 1) after the car has been sitting for a month (not sure if that has anything to do with the prob.
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Old 04-15-2011, 04:00 PM   #2
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Re: Bad heads?

bad injector ??
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Old 04-15-2011, 10:36 PM   #3
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Quote:
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bad injector ??
Well that's not coming up on the tuner.
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Old 04-16-2011, 09:02 AM   #4
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Re: Bad heads?

it wont , it'll just show up as a miss fire
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Old 04-16-2011, 11:39 AM   #5
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Re: Bad heads?

Worth checking out.
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