missfire

Discussion in 'Introduction' started by kryer, Apr 14, 2019.

  1. kryer

    kryer New Member

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    I have a 1998 discovery that has a sporadic missfire. some times you can drive a few days with no problems other times just 15 mins. But it only miss fires at running temp and will not go over 1500 rpms. I have replaced all 4 o2 sensors and the crankshaft sensor. It has been to a couple of shops for diagnostics and they can not get their computers to communicate with mine.any assistance would be appreciated.
     
  2. joey

    joey Custom Rover Accessories Staff Member

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    Without knowing if it has any check engine codes, I would ask, is everything stock, normal dry air filter or do you have a oiled airfilter?
     
  3. kryer

    kryer New Member

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    everything is stock dry air filter the mechanic said there are codes they just cant be retrieved do to communication issues
     
  4. joey

    joey Custom Rover Accessories Staff Member

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    This is normally caused by corrosion at the ECU connections. Not a good sign, but can be fixed.
     

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