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p0300 code

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  • September 10, 2011 at 11:00 am #451617
    automechanicautomechanic
    Participant

      i have a 1997 gmc sonoma it has the p0300 code fuel prussure is good new plugs wires and coil then battery voltage is also good and the compression is also good what could the problem be please help.

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    • November 18, 2011 at 11:00 am #451633
      EricTheCarGuy 1EricTheCarGuy
      Keymaster

        +1 on it not being the cam sensor, if it was I would think you would have some kind of code and that it would act up at more than just idle and on take off if that was the case. I guess the main point is that you need more information, since you det

        November 19, 2011 at 11:00 am #451634
        pcmdjasonpcmdjason
        Participant

          Also notice in the wells video that the oil was heavily contaminated. You might want to get a small cup and take a sample from the oil pan and see if you can find any sign of coolant.

          November 19, 2011 at 11:00 am #451635
          jacobnbr1jacobnbr1
          Participant

            [quote]Quoted From automechanic:

            DTC for which Freeze Frame was StoredP0300Fuel System 1 StatusOpen LoopFuel System 2 StatusOpen LoopCalculated LOAD Value3.53 %Engine Coolant Temp91.40

            November 26, 2011 at 11:00 am #451636
            automechanicautomechanic
            Participant

              the compression is good in all cylinders

              November 26, 2011 at 11:00 am #451637
              Trcustoms719Trcustoms719
              Participant

                I agree 100% with Jacob. as soon as i saw the fuel trims, my thoughts screamed vacuum leak!

                November 26, 2011 at 11:00 am #451638
                dreamer2355dreamer2355
                Participant

                  Quoted From Trcustoms719:

                  I agree 100% with Jacob. as soon as i saw the fuel trims, my thoughts screamed vacuum leak!

                  +1.

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