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check engine light

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    #1

    check engine light

    what can cause the check engine light NOT to come on??? i know that it is supposed to come on for 2 seconds when you turn the ignition on but mine dosent. got ne ideas???
    Sig removed due to excessive size
    Tags: None
    #2
    the bulb is out, the cluster is fucked up, bad wiring.....

    pull your cluster and see whats going on.....

    Comment

      #3
      If it doesn't turn on immediatly upon startup, then your bulb behind the gauges is dead.

      Comment

        #4
        well, this may be true but the main reason im asking is bc the car wont start. no fire to the plugs. i have already tried everything: new igniter, coil, cap, rotor, wires and plugs. its not the main relay. so i guess the real question is, what controls the check engine light and does it also control the starting of the car???
        Sig removed due to excessive size

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          #5
          bump, i really need help guys.
          Sig removed due to excessive size

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            #6
            Bad ECU if you know the bulb is fine. Get another one.

            The New-ish Ride
            My old Ride
            Hear my Vtak!!!
            MK3 Member #3
            I piss off people for fun.
            IA 08 Sunburn Victim #1

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              #7
              so thats the only explination??? if so thats actually a good thing. i know how to make it work. what could cause a ecu to go bad???
              Sig removed due to excessive size

              Comment

                #8
                moisture/fire/short in wires etc....

                Comment

                  #9
                  so if the ecu is bad then the car wont spark and the check engin light wont light up. btw i have power to the dizzy.
                  Sig removed due to excessive size

                  Comment

                    #10
                    yes if the ecu is bad then the car doesnt do ANYTHING.

                    Comment

                      #11
                      what do you mean by anything??? it turns over but no spark. all electric stuff works.
                      Last edited by CB7Junkie; 01-30-2007, 11:32 PM.
                      Sig removed due to excessive size

                      Comment

                        #12
                        bump. how can i test a ecu and see if its bad or not???
                        Sig removed due to excessive size

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                          #13
                          Usually NO CEL is a dud for an ECU. What you can do is find a working car with the same ECU and start your car. IF the other ECU works then your ECU is bad.

                          The New-ish Ride
                          My old Ride
                          Hear my Vtak!!!
                          MK3 Member #3
                          I piss off people for fun.
                          IA 08 Sunburn Victim #1

                          Comment

                            #14
                            what will work with a bad ecu???
                            Sig removed due to excessive size

                            Comment

                              #15
                              bump
                              Sig removed due to excessive size

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