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

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

by in Charlotte, NC on March 22, 2010
2 answers
ANSWER by on March 22, 2010
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:
ANSWER by on March 23, 2010
problem with EGR can cause this also

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