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1999 Mitsubishi Eclipse Question: number #1 cylinder misfire,check engine light is on



, 2.0L 4 Cylinder, Charlotte, NC, March 22, 2010, 11:17

replaced coil pack,wires,and plugs.still number #1 cylinder misfire,also replaced caytalic converter

2 Answers
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  • Answer #1

    March 22, 2010, 12:26

    You need to perform a mechanical check of the #1 cylinder to make sure it is OK, you could have low compression in that cylinder, you could have an injector that isn't firing, and there is a possibility of an intake gasket leak. Learn more here: http://repairpal.com/OBD-II-Code-P0301

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  • Answer #2

    Visitor, March 23, 2010, 04:18

    problem with EGR can cause this also

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