Check P0390 Fault Code

When you check engine light came on code P0390 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0390 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0390 Code Reason

Parts or components should not be replaced with reference to only a P0390 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

P0390 Possible Fix :

If there's a part that needs repairing, leave it to the professionals. Unless of course, you're confident that you can conduct all these repairs at home. You'll need relatively expensive replacement equipment and tools for this though.

P0390 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0390 OBD-II Trouble Code The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module (

Reason For P0390 Code

The reason of P0390 OBD-II Fault Code Check is P0390 Camshaft Position Sensor B Circuit Bank 2.

P0390 Solution:

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

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