Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)
The ECU detected that the bank 1 intake valve oil control solenoid does not respond as expected. Common causes are sludge in the oil passages, a sticking solenoid, or low oil pressure that prevents proper VVT phasing on the intake side.
Affected components
- Oil control valve
- Camshaft position actuator
- Engine oil
Common causes
- High likelihood: Oil control valve mechanically stuck
- Medium likelihood: Sludge or debris in oil passages
- Medium likelihood: Low oil pressure or wrong oil viscosity
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.