VTC Oil Control Solenoid Valve Removal/Test/Installation

Disconnect the VTC oil control solenoid valve 2P connector (A).

Fig 1: VTC Oil Control Solenoid Valve 2P Connector, Bolt And VTC Oil Control Solenoid Valve With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the bolt (B) and the VTC oil control solenoid valve (C).
Check the VTC oil control solenoid valve strainer for clogging. If the strainer is clogged, replace the VTC oil control solenoid valve.
Note the amount of valve opening by observing the position of the piston shoulder (A) through the valve retard drain port. If you see the shoulder of the piston, the valve is open and must be replaced.
Closed

Fig 2: Identifying Piston Shoulder
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect the battery positive terminal to VTC oil control solenoid valve 2P connector terminal No. 2.

Fig 3: Connecting Battery Positive Terminal To VTC Oil Control Solenoid Valve 2P Connector Terminal No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect the battery negative terminal to VTC oil control solenoid valve 2P connector terminal No. 1.
Appearance of the inner valve (A) in the port should be at least 0.05 in (1.2 mm). If the inner valve does not open, replace it; then Go to step 7.

Open

Fig 4: Identifying Inner Valve Clearance
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the VTC oil control valve O-ring (A).

Fig 5: VTC Oil Control Valve O-Ring And VTC Oil Control Valve With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Coat a new O-ring with clean engine oil, then install it on the valve.
Clean and dry the mating surface of the valve.
Install the VTC oil control valve (B).
NOTE: Do not install the valve while wearing cloth fibrous gloves. Be careful not to contaminate the cylinder head opening.