​Professional Auto Care

What does the light mean? | Code break downs | When further testing may be required


P0300 to P0399 refer to Misfire & Ignition System. Again, just because the code points to a particular sensor or component simply means it triggered the check engine light to illuminate, but does not mean it is the cause of the problem.


P0300 - P0312
Engine Misfire
P0325 - P0334
Knock Sensor

P0335 - P0339

P0385 - P0389

Crankshaft Position Sensor
P0340 - P0344
Camshaft Position Sensor
P0350 - P0362
Ignition Coil


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