Index

Fault codes, decoded

Had the code read? Good — that's the right first move, and it's free at most US parts stores. Now find it below for what it actually means, what it should cost, and where shops most often get it wrong.

Misfires & engine timing

Fuel & air mixture

Temperature & oxygen sensors

Emissions & EVAP

Idle & speed control

Oil pressure & voltage

Transmission

ABS & communication

Not sure this matches your car?

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