Camshaft Position Sensor A Circuit Range/Performance Bank 2
What it means
P0346 means the bank 2 camshaft position sensor signal is present but out of its expected range or not correlating with the crankshaft signal. The computer uses cam position for fuel injection and spark sequencing, so this can cause hard starting, hesitation, or stalling — commonly from wiring, the sensor, or worn cam timing.
Can I keep driving? Usually drivable, but the engine may hard-start, stall, or hesitate — repair it before it leaves you stranded.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting or longer cranking
- Rough idle, hesitation, or occasional stalling
- Reduced power (engine may drop to a limp/limited mode)
Common causes
Most likely first
- Faulty camshaft position sensor on bank 2Likely
- Corroded or loose connector at the sensorCommon
- Wiring fault (open, short, or intermittent) in the sensor circuitCommon
- Damaged cam reluctor/tone wheel, or worn timing chain/tensioner affecting cam timingLess often
- ECM fault (rare)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and inspect the bank 2 cam sensor connector and wiring.
- Compare the cam signal to the crank signal on a scan tool for correlation.
- Check for timing chain stretch or a damaged reluctor if the signal is erratic.
- Replace the camshaft position sensor if it is out of spec, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0346?+
Can I just clear P0346?+
Related codes
Read & clear P0346 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.