Variable Valve Lift Oil Control Valve: Celica
- Remove No. 2 cylinder head cover located on top of engine, above ignition coils and valve cover. To check VVL oil control valve resistance, disconnect electrical connector at VVL oil control valve. VVL oil control valve is located at intake manifold side of cylinder head, near flywheel end of engine. See Fig 1.
- Using ohmmeter, check resistance between electrical terminals on VVL oil control valve. Resistance should be 6.9-7.9 ohms at 68°F (20°C). If resistance is within specification, go to next step. If resistance is not within specification, replace VVL oil control valve. See VARIABLE VALVE LIFT OIL CONTROL VALVE
under VARIABLE VALVE LIFT SYSTEM in REMOVAL & INSTALLATION - 4-CYLINDER article.
- To check VVL oil control valve operation, remove VVL oil control valve. See VARIABLE VALVE LIFT OIL CONTROL VALVE
under VARIABLE VALVE LIFT SYSTEM in REMOVAL & INSTALLATION - 4-CYLINDER article.
- Note movement of valve inside VVL oil control valve while applying and disconnecting battery voltage and ground to terminals No. 1 and 2 on VVL oil control valve. See Fig 2. Valve should move outward toward end of assembly opposite electrical connector with voltage applied and should move inward toward electrical connector end of assembly with voltage not applied. See Fig 2. Replace VVL oil control valve if operation is not as specified.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002