P1110 – Intake Valve Timing Control (Bank 1, Nissan)
Description
The ECM detected improper operation of the intake valve timing control system on Bank 1.
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Compare Diagnostic ScannersSymptoms
- Rough idle
- Poor acceleration
- Hesitation
- Reduced power
- Check engine light
Causes
- Stuck OCV valve
- Low or dirty oil
- Clogged oil passages
- Timing chain wear
- ECM VVT control fault
Diagnosis
- Check oil level
- Inspect OCV operation
- Measure oil pressure
- Scan VVT data
- Check cam timing
Repair
- Replace OCV
- Change oil
- Clean oil passages
- Repair cam timing
