P0021
Medium SeverityIntake Camshaft Position Timing Over-Advanced (Bank 2)
Engine System
What Does P0021 Mean?
Same as P0011 but on bank 2 (the opposite cylinder bank on V-engines). The intake cam is too far advanced due to oil or VVT solenoid issues.
Common Fix
Replace VVT solenoid bank 2
Estimated Cost (DIY)
$30 - $150
Symptoms
- ⚠️Rough idle
- ⚠️Poor fuel economy
- ⚠️Loss of power
- ⚠️Check engine light
Common Causes
Low or dirty oillikely
Faulty bank 2 VVT solenoidlikely
Timing chain stretchpossible
Clogged oil gallerypossible
How to Diagnose P0021
- 1Check oil level and change if dirty
- 2Test bank 2 VVT solenoid
- 3Inspect timing components
- 4Compare bank 1 vs bank 2 cam timing
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Frequently Asked Questions
- Is P0021 different from P0011?
- P0021 is the same problem as P0011 but on bank 2 (opposite side of V-engine). The fix is the same — check oil and VVT solenoid.
- Can I drive with P0021?
- Yes, but fix within a week. Engine performance will be reduced and fuel economy suffers.