Malfunction Indicator Light

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Malfunction Indicator Light - 8/31/2004 10:44:22 AM    04Dakota Posts: 392 Joined: 1/21/2004 From: Whitesburg, KY Status: offline Can anyone tell me why this light is staying on? I ask a friend who's a mechanic and he said it could be an oxygen sensor where i didn't close my gas cap tight enough but I always make it click 5 or 6 times. I am going to call the dealer today and make an appointment to have it looked at but I was wondering if anyone here could shed some light on this for me. Thanks!! Mitch _____________________________ *2004 Dodge Dakota SXT* -clear corners- -Checker Pro tonneau cover- -fog lights- -tinted windows- Post #: 1

RE: Malfunction Indicator Light - 8/31/2004 7:23:17 PM    Spyder Posts: 182 Joined: 11/4/2003 Status: offline you need a code reader to find out the exact cause of the light. _____________________________ '99 blue Dakota R/T rc You're talkin' to me all wrong. Your tone's all wrong. If you do it again I'm gonna stab you in the face with a sodering iron." Clem from Joe Dirt (in reply to 04Dakota) Post #: 2

RE: Malfunction Indicator Light - 8/31/2004 11:45:55 PM    tago123   Posts: 4 Joined: 8/21/2004 Status: offline If you cycle your key in the ignition 3 to 5 times (w/o starting the engine) you can get the code displayed in the odometer on the dash. I just had P 0423 and P 0455 show up on my '01. I took the codes to the dealer and they said these were standard pressure or vapor leak codes in the tank or fuel filler areas and that if the gas cap gets removed before the engine is off or if the cap is loose, the codes can be triggered and the check engine light will come on. In my situation, the cap had some rust residue on it. The dealer reset the codes and I replaced the cap with a new one. We'll see if it the codes come up again. BTW... I was advised that you should NEVER tighten the cap more than 1 or 2 clicks... it doesn't make the cap tighter, it will only wear down the plastic mechanism faster and lead to possible failure. (in reply to Spyder) Post #: 3

RE: Malfunction Indicator Light - 9/23/2004 4:51:33 PM    Doughrat19   Posts: 7 Joined: 9/21/2004 Status: offline 04Dakota, the same thing happened to my 04. The malfunction indicator light came on the day after I took my truck home! After that it turned on 2 other times, for a day or two at a time. I took it in, turns out my computer was malfunctioning. They reprogrammed it, and I haven't had a problem since. That was back in April. (in reply to tago123) Post #: 4

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