P0344
Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor)
Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor): the signal is intermittent or erratic. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.
- 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.
- Intermittent connectorCommon
- Connector with intermittent contact under vibrationLess likely
- Harness routed against vibrating componentLess likely
Parts involved
- Camshaft Position Sensor
P0344 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.