VVT solenoid circuit bank 1 intake cam — oil control valve not responding.
Common symptoms
- Rough idle
- Rattle on cold start
- Loss of power
- P0011/P0014 may follow
Typical causes
- Failed VVT solenoid
- Low engine oil level or wrong viscosity
- Sludged oil blocking solenoid
- Wiring at valve cover
What scanner do you need?
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)
Use live data and freeze frame to confirm the fault before replacing parts. ABS, SRS, and network U-codes usually require a full-system scanner.
Diagnostic tips
- Record freeze frame data when the code first sets
- Clear the code only after fixing the root cause
- Check for related pending codes that point to a common issue
- Verify battery voltage is above 12.4V before chasing sensor codes