Cold Start Cylinder 4 Deactivation/Intake Valve Control Performance
During cold start, the cylinder 4 deactivation or intake valve control does not respond as expected. Cold oil viscosity, lifter slow to actuate, or solenoid response sluggish.
Affected components
- Cylinder deactivation solenoid cyl 4
- Intake valve actuator
- Engine oil
Common causes
- High likelihood: Cold oil viscosity too high
- Medium likelihood: Solenoid response sluggish at cold
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.