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Old 04-05-2015, 05:19 AM   #1
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Lightbulb p0300 only code

CEL came on. Went to advanced auto and had them scan it (only place open on Easter) and they are telling me that only this code is coming up. Any idea what this could be?

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Old 04-05-2015, 05:31 AM   #2
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Googled it,
Misfire code... check coils for splits/cracks and plugs for fouling. Could also be dirty fuel filter.
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Old 04-05-2015, 07:55 AM   #3
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Failing AOS, dirty MAF sensor, dirty fuel injectors and what Steve posted.
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Old 04-05-2015, 11:48 AM   #4
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Turns out the seal for the gas cap was dried out and cracking. Replaced the cap, CEL shut off.
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Old 04-05-2015, 11:56 AM   #5
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Quote:
Originally Posted by Ryan986 View Post
Turns out the seal for the gas cap was dried out and cracking. Replaced the cap, CEL shut off.
Now, pop the trunk & check for moisture over the coolant cap. make sure that is the latest version.

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