Question about 2002 Pontiac Montana

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Check engine light

If the check engine light is on or was on, then what alternative methods
(hopefully including do - it - yourself) are there to obtain the engine trouble codes, and then are there any on-line methods to interpret the codes to actual engine faults.
I am interested in this for Pontiacs (2000-2002 Montanaa), chevrolets, and saturns

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  • navin416 Sep 09, 2008

    Iscanned 2002 pontiac montana.the code P0203 comes on .iT says fuel injecter 3 cercuit.iwant to know how to fix.thank you navin.



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The only way you can retrieve these codes is with a code reader. it's cheaper than a scan tool. problem with these is it only reads the codes and the booklet tells you what the code means but it can't clear the code and it can't change the parameters to keep the codes from coming back. do me a favor and rate this ...thanks

Posted on Sep 02, 2008

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The check engine light comes on if the gas tank cap is not tight. I had mine checked out as soon as this happened. Since then it has happened twice - I just stop and tighted the gas cap and within a couple of starts - the check engine light goes off.

Posted on Feb 18, 2009

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Scanned pontiac montana 2002.Code p0203 come on .It says FUEL INJECTER 3 CERCUIT. Iwant to know how to fix this problem. thank you,Navin.

Posted on Sep 09, 2008

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Try this. Disconnect your battery cable (Neg and Pos), Turn on ignition key, and press your brake pedal for about 10 seconds.Turn off ignition key. Reconnect battery terminals and start the engine. Check engine light should go off. If it does not, see your mechanic.

Posted on Feb 13, 2009

  • Prucilla Tassara
    Prucilla Tassara Jul 31, 2015

    This sounds easy, but, unfortunately, the battery is not easily assessible without taking almost everything apart under the hood.


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