Question about Mitsubishi Montero Sport

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2001 montero sport 6 cly 3.0 check eng. lite come "on". is this serious problem that need to be fix. right now i erase the code and waiting to test drive. how long do i have to drive before the check eng. light will come back.

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  • Rudy Cordova
    Rudy Cordova Aug 22, 2010

    SORRY I FORGOT THE CODE P0403 . I THANK YOU VERY MUCH FOR YOUR HELP

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If the check engion light is on it can be serious. To find that out I will need the code to see what the problem is. Most cars/trucks if the light comes on and you clear it it will come back on with in 60 miles of clearing it. YWhen it comes back on please let us know the code so we can tell you what is wrong with it.

Posted on Aug 22, 2010

  • Jyackle5
    Jyackle5 Aug 22, 2010

    The description of P0403 is Exhaust Gas Recirculation (EGR) Circuit Malfunction. Seemingly the common problem here is that the solenoid is either stuck open or closed. I'd recommend you get a good quality manual and a DVOM (digital volt ohm meter) and test the operation of the solenoid. Check the voltage. Also verify all wiring and connectors in the EGR system.



    You need to replace the egr valve.

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