P0020
"A" Camshaft Position Actuator Circuit (Bank 2)
Electrical fault in the bank 2 intake camshaft position actuator. Same diagnostic principle as P0010 but on the second cylinder bank.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Common causes
Ordered by how often each turns out to be the cause.
- Oil control valve electrically failedCommon
- Wiring or connector faultPossible
Parts involved
- Camshaft Position Actuator
- Oil Control Valve
P0020 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.