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  1. CEL P0300 error code - Random/Multiple Cylinder misfire

    Problems, Driver Warnings or DTCs - Chevy Volt
    Sorry for long post Last winter I start My12 Ampera at -20C, start directly on gas and the engine start to shake and engine light turns on. After about 1 minute, everything fine and until, never had that issue until this year. On last year inspection dealer service told me that error could be a...
  2. ⚠ Bad Gas, or Blown Head Gasket? ⚠

    Problems, Driver Warnings or DTCs - Chevy Volt
    Hello all, Just recently bought a 2012 Volt (this past February) after reading tons of threads on this awesome site. I really like the car! Brief Rundown: 170K on mostly the engine (30 lifetime MPG) 3 DTC Codes: P0131, P0137, and P0420 Changed Oil, Spark Plugs, and Air Filter No mods except...