Fault codes › P0393
P0393
Camshaft Position Sensor B Circuit High Bank 2
Generic code
Ignition System
High severity
Moderate repair
Free on OBD DashX
Want real-world data on P0393?
See which problems come with P0393, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
See P0393 on OBD DashX
No sign-up needed · available in 10 languages
iWhat P0393 means
- The fault code P0393 indicates that there is an issue with the circuit that controls the camshaft position sensor for bank 2. This may lead to a number of performance-related issues or the engine not starting altogether.
!Possible symptoms
- Engine may not start
- Rough idling or stalling
- Reduced engine power or acceleration
- Illuminated check engine light
?Possible causes
- Failed camshaft position sensor
- Wiring or connection issues in the sensor circuit
- Loose or corroded electrical connections
- Failed engine control module (ECM)
⚙Related parts
- Camshaft Position Sensor: The camshaft position sensor monitors the position of the camshaft to regulate fuel injection. Problems lead to stalling or car failing to start.
✓Possible solutions
- Replace the camshaft position sensor
- Inspect and repair any damaged wiring or connections in the circuit
- Tighten or clean any loose or corroded electrical connections
- Replace the engine control module (ECM) if necessary