P3490 OBD II Trouble Code Cylinder 12 Deactivation/Intake Valve Control Circuit Performance

How to quickly diagnose and repair, and causes of a P3490 trouble code which indicates a performance problem in cylinder 12 deactivation or intake valve control circuit.

Symptoms of P3490 OBD II Trouble Code

Common Causes of P3490 OBD II Trouble Code

Severity of P3490 OBD II Trouble Code

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