Code
P1161
Nissan VVT
Intake valve timing control performance
Nissan: intake valve timing not reached.
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Most likely causes
- Faulty VVT solenoid
- Low oil pressure
- Chain wear
Symptoms you may notice
- Check engine light
- Rough idle
- Reduced power
Checks to run
- Test the solenoid
- Check oil pressure
- Verify timing
Tools you may need
OBD-II scanner
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.