| DTC Data Sheet | |
| System | Powertrain |
| Standard | SAE J2012 / ISO 15031-6 |
| Fault type | Intermittent |
| Official meaning | Camshaft Position Sensor "A" Circuit Intermittent (Bank 2) |
Bank 2 CMP signal intermittently disappears or glitches. Same failure modes as P0344 but on bank 2.
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P0349 Quick Answer
Bank 2 CMP signal intermittently disappears or glitches. Same failure modes as P0344 but on bank 2.
What Does P0349 Mean?
Camshaft Position Sensor "A" Circuit Intermittent (Bank 2). Bank 2 CMP signal intermittently disappears or glitches. Same failure modes as P0344 but on bank 2.
Symptoms
- Intermittent stalling
- Hot-restart problems
- Random misfires
Common Causes
- Heat-failing bank 2 CMP
- Vibration-induced wiring damage
- Bank 2 reluctor damage
- Loose connector
Diagnosis Steps
You’ll need a scan tool capable of reading live powertrain data, a digital multimeter, and access to the wiring diagram for the specific platform.
- Heat-test bank 2 CMP while monitoring live data.
- Wiggle-test the harness.
- Inspect reluctor.
Possible Fixes
- Bank 2 CMP replacement (heat-failure mode is most common)
- Wiring or connector repair
Can I Still Drive With P0349?
The vehicle will usually still drive with P0349 stored, but performance, drivability, or emissions will be degraded. The PCM may inhibit emissions monitors and limit closed-loop fueling adjustments. Drive to a workshop, but don’t ignore the code long-term.
How Serious Is This Code?
P0349 is a moderate-priority fault. It will not prevent the engine from running, but unaddressed it can cascade into related faults or damage downstream components such as the catalytic converter. Address within a few drive cycles.
Brand-Specific Guides for P0349
Manufacturer-specific diagnostic procedures with factory data and pin-level details for vehicles where this code commonly sets:
FAQ
Will P0349 clear itself?
Only if the underlying fault was intermittent and self-corrected. Most root causes are persistent and require physical repair.
Can I clear P0349 without fixing it?
You can clear it with a scan tool, but it will return as soon as the fault condition reappears — typically within one or two drive cycles.
Is P0349 related to other codes?
Often, yes. Adjacent codes in the same circuit or system frequently set together — if P0349 is present, scan for related codes and address them as a group.