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08 CS with 14k I’m rebuilt motor. The car sat for about 5 months . Started it up yesterday and for misfire code for cylinder 1. Everything was replaced during the rebuilt. Could this misfire be cause by sitting too long because the car ran so great before it sat for a couple months . Also during the start up the car shook a little with flashing cel
 

I put new plug and coil pack same code P0301.

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Probably bad gas.  5 months is possibly too long for gas to sit without some stabilizer.  Might consider flushing out the old gas and getting some new gas in there.

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3 hours ago, DBJoe996 said:

Probably bad gas.  5 months is possibly too long for gas to sit without some stabilizer.  Might consider flushing out the old gas and getting some new gas in there.

 

Bad gas doesn't consistently cause issues in only one cylinder.

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Thanks all, getting it towed to dealer tomorrow . Praying it’s not another cylinder gone bad. 

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