Operation CHARM: Car repair manuals for everyone.

Variable Valve Timing Actuator: Testing and Inspection

Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) Test

1. Disconnect the rocker arm oil control solenoid (VTEC solenoid valve) connector.
2. Measure resistance between the rocker arm oil control solenoid (VTEC solenoid valve) 1P connector terminal (A) and body ground.
- If the resistance is as specified, go to step 3.
- If the resistance is not as specified, replace the rocker arm oil control solenoid (VTEC solenoid valve).






3. Remove the rocker arm oil control solenoid (VTEC solenoid valve)/oil filter assembly (A) from the oil pump, and check the rocker arm oil control solenoid (VTEC solenoid valve) filter (B) for a restriction. If there is a restriction, replace the rocker arm oil control solenoid (VTEC solenoid valve) filter, the engine oil filter, and the engine oil.






4. If the filter is not restricted, remove the rocker arm oil control solenoid (VTEC solenoid valve) (A) and push the valve (B) with your finger to check its movement. If the valve moves freely, it is normal, check the engine oil pressure. If the valve binds or sticks, replace the rocker arm oil control solenoid (VTEC solenoid valve) assembly.