P0346
Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2)
The bank 2 camshaft position sensor signal is present but does not match the crank reference correctly, or its pulse pattern is implausible.
- 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.
- CMP sensor intermittentCommon
- Reluctor wheel damagedLess likely
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Camshaft Position Sensor
- Reluctor Ring
P0346 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.