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Old 12-18-2012, 04:23 PM   #1
=Stephens=


 
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Drives: 2011 LS
Join Date: Feb 2011
Location: Kearney, Nebraska
Posts: 3,541
PO300, 302,303,305 codes

Today my CEL came on, I scanned it and got the PO300,302,303,305
Random misfire and misfire on 2,3 and 5 cylinder. The car has been running fine. There are no tunes, and the only mods on the engine is a K & N CAI and flowmaster exhaust.

Can anyone give insight? I couldn't clear the codes off either.
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