Engine won't start
3 Answers
beatupchevy answered 6 years ago
what are the definitions for those codes ?
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P0300 multiple misfire p0302 is miss on cylinder 2 and po523 is high voltage at oil pressure sensor
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beatupchevy answered 6 years ago
I would replace the oil sensor , see what the plugs look like or if the wires are old and worn , see if the injectors are all firing normal , with one misfire you can swap things to see if the problem moves but with multiple it may be something across the board