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HELP: Code 9/Misfire

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    #1

    HELP: Code 9/Misfire

    I start the car and start driving. Upon normal acceleration it bogs (misfires) between 2000 and 4000 RPM. Sometimes right away, sometimes after like a minute of driving. After it bogs, the engine light comes on, and it starts driving all fine, and drives flawlessly as long as the light is on. The CEL is throwing a code 9 (Cylinder Sensor). I assume that it's almost like a misfire sensor?

    I replaced my spark plugs, checked the distributor cap, rotor, and wires. I don't wanna start replacing injectors and fuel pumps yet. Maybe you guys have any ideas?

    Please Help!

    (JDM H22A motor, external MSD Blaster coil, new MSD wires, new NGK plugs)

    My CB7 is now ***FOR SALE***
    Tags: None
    #2
    BUMP.

    Anyone?

    My CB7 is now ***FOR SALE***

    Comment

      #3
      Did this randomly happen? Or did it happen after you did something with the distributor? Your igniter could be going bad. Try switching that out first.

      This has nothing to do with ECU tuning btw.

      CrzyTuning now offering port services

      Comment

        #4
        Originally posted by d112crzy
        Did this randomly happen? Or did it happen after you did something with the distributor? Your igniter could be going bad. Try switching that out first.

        This has nothing to do with ECU tuning btw.
        This just randomly happened. But 4-5 weeks after I converted to external (MSD) coil.

        Anyhow, the other day I borrowed my friend's throttle body and TPS to test on my car.... same problem. Then I took out the igniter out of the distributor and went to test it at a local parts place.... it passed. So then I borrowed his ECU (also a chipped P28) and the car runs fine, no misfire no code. Except his car is tuned for NOS and it's obviously a different air/fuel curve/map so I was kinda sketchy driving with his ECU even though it was only for 10 minutes. It ran lean and I didn't want detonation.

        The guy that burned my chip for my P28 is burning me a new chip on Wednesday, but other people told me it might be the ECU itself and not the chip.

        ????




        My CB7 is now ***FOR SALE***

        Comment

          #5
          Problem solved. Got a new P28 ECU. Reusing my same old custom chip in it. Cars runs flawless.

          My CB7 is now ***FOR SALE***

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