Question about 2003 Honda Accord

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Has misfire codes and idles and runs bad

Checked for vacume leaks,none

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  • Richard Faber
    Richard Faber Apr 08, 2015

    Hi peter leufkens, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

  • peter leufkens
    peter leufkens Apr 08, 2015

    thanks for answering, also checked the egr,cleaned throttle body,has codes p0300 p0301 thru 306



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Check EGR valve for sticking open. If problem does not occur when cold and first starting, check coolant temp sensor. Also could be sticking Idle air control valve.

Posted on Apr 18, 2015

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Replace spark plugs, spark plug wires, fuel filter, and add some injector cleaner to the gas. Any change? if not it could be something to do with your ignition system, or fuel injectors, or maybe even engine timing.

Posted on Apr 14, 2015


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