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92 Viper intermittent misfire

Discussion in 'RT/10 and GTS Discussions' started by Steath, Sep 10, 2019.

  1. Steath

    Steath Enthusiast

    Sep 10, 2019
    Has a misfire/no start that comes and goes. Seems to be no rhyme or reason. Appears to have new coils, plugs, wires, TPS, cam sensor, crank sensor, o2 sensors, ASD, and PCM. Acquired this car after someone else worked on it. We had to put the pcm in it to get it started when we 1st got it. We also put in the TPS, wires, plugs, coils, and ASD relay. Cleaned all grounds and load tested the battery. TPS had a open in the sweep so it was replaced for failing. Other parts we did were just preventative/ cheap guess. Previous owner did the other parts we are guessing because they look new. Any known problems we should check? Ignition controller? Known rub through points on the harness? Thanks for any help
  2. 2000ViperRT10

    2000ViperRT10 Enthusiast

    Nov 29, 2004
    I had this problem once. It turned out to be a leaky head gasket.
  3. yehan

    yehan Enthusiast

    Feb 22, 2018
    Hi, fellow 92 owner here. Do you have any codes on the ODB1 reader. There's a way to get this by turning the ignition switch and looking at how many times the check engine light flashes. You can find more in the user manual.
    Check to see when the misfire happens. I once had a misfire in a honda that was due to the coil wire being too loose. There could be many reasons. It's just going to be methodical troubleshooting.

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