Question about 2001 Mitsubishi Eclipse Spyder

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Engine misfires under load.

My 2003 Mits Eclipse, 4 cyl, 5 spd trans, will misfire when I step into the gas pedal. It seems to do ok when the RPM's are above 1500, but to take off from a stop I must first get the RPM's up above 1500 and then let the clutch out. If I try to keep my RPM's around 800 to 1000 it begins to misfire and throws a code. That being said, if I have the A/C on, then I have to keep my RPM's above 2000! I have replaced the spark plugs, but none of them looked bad, nor did it fix the problem. Has anyone ever heard of this problem?

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  • marcnelson66 Jul 17, 2009

    No, after I waisted money on the plugs I started to second guess myself in thinking that it was a spark issue. I thought maybe fuel or induction?

  • marcnelson66 Jul 17, 2009

    No, after I waisted money on the plugs I started to second guess myself in thinking that it was a spark issue. I thought maybe fuel or induction?

  • marcnelson66 Jul 18, 2009

    Replaced wires and coil boots. I also replaced valve cover gasket and tube seals. Problem solved! Thanks guys!

  • mike loshbough
    mike loshbough May 11, 2010

    Did you replace the plug WIRES?

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  • 17 Answers

Replace the wires and coil boots.........

Posted on Jul 17, 2009

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