What does code P0021 mean on a Aston Martin and is it safe to drive?
P0021: Camshaft Position A – Timing Over-Advanced or System Performance (Bank 2). Here's what it means on your Aston Martin, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Same as P0011 but for the intake cam on bank 2. On V6/V8 engines, P0011 and P0021 appearing together strongly points to an oil-related cause affecting both banks.
Common causes for your Aston Martin
- Low or dirty oil affecting both bank VVT systems
- Failed bank 2 intake cam OCV
- Timing chain stretch on bank 2
Symptoms
- Check Engine Light
- Rough idle or rattling
- Poor fuel economy
Typical fixes
- Oil change with correct viscosity
- Replace bank 2 intake cam OCV
- Timing chain service if worn
Repair cost range
For a Aston Martin, repairs for P0021 often fall between $100 and $1200, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.