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multiple codes

  1. New Member Section
    2012 Terrain check engine light comes on starting with 2 codes p0030 n p0036 went to fix them and more codes show up p0097, p0141, p0443 n p2199. Fixed the first 2 O2 heater sensors n replaced Mass Air/IAT2 sensor but when you clear them after 15 minutes or a restart they all come...
  2. Engine & Drivetrain
    I'm hoping someone can help narrow down the large list of possibilities that could be causing these codes to be permanently displayed... I have to do the work myself if in any way possible as I can't afford any sort of mechanic at this point... More info: it all started with what seemed like...
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