Question about Saturn L-Series

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2003 Saturn L300 misfire only in cylinder 1 replaced spark plugs and condition persist.

Car is misfiring under load in first gear at about 3000rpm and no other times, I used the code reader and got code P0301 and since it was due anyway I replaced the spark plugs and all looked normal. Also it was very clean around them and the coil and plug boots looked it good condition, should I be looking at the fuel pump or possibly replacing the coil?

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  • John Jurasic Jul 18, 2013

    I meant fuel injector.

  • montehammons Jul 18, 2013

    yes, could be that, too.

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  • Saturn Master
  • 5,278 Answers

Possibly the coil. Low pump pressure would cause multiple misfires-in all cylinders, not just in number 1.

Posted on Jul 18, 2013

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My 2003 mustang has a misfire code P0302 and runs rough under load.


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