Powertrain
Definition only
Lights the check engine lamp
P34AC: A Camshaft Position Actuator Position Sensor A Circuit Bank 1
Standardized SAE J2012 code · P34xx codes
What does P34AC mean?
Generic electrical fault on the position sensor of the intake camshaft actuator on bank 1 (closed-loop feedback for VVT angle).
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Common causes
- High Position sensor failed
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P34AC on the same make and model first.
P34AC in the community
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Describe your P34AC problemRelated codes
- P2B3F A Camshaft Position Actuator Position Sensor B Circuit Bank 1
- P2B43 A Camshaft Position Actuator Position Sensor B Circuit Bank 2
- P2B47 B Camshaft Position Actuator Position Sensor B Circuit Bank 1
- P2B4B B Camshaft Position Actuator Position Sensor B Circuit Bank 2
- P34B0 A Camshaft Position Actuator Position Sensor A Circuit Bank 2
- P34BC B Camshaft Position Actuator Position Sensor A Circuit Bank 1
- P34C0 B Camshaft Position Actuator Position Sensor A Circuit Bank 2