Multi-code OBD2 diagnosis
Enter all the codes your scanner showed, not just the first one. We give you the overall severity, whether you can keep driving, the order in which to check them and how they relate to each other.
Summary
- Overall severity
- Medium
- Can I keep driving?
- Yes, but with caution
- Estimated cost
- $60 to $1,200
- Codes analyzed
- 1 of 1
The order below is the recommended one: first the codes that can cause the others. After each repair, clear the codes and check which ones come back.
Order of inspection
P0021 A Camshaft Position Timing Over-Advanced or System Performance (Bank 2) Medium
The P0021 code means the intake camshaft on bank 2 is not reaching the commanded position, or it stays advanced. It is the P0011 equivalent on the other bank, so it only appears on V-type or flat engines. The condition of the engine oil is the first thing to rule out.