P0341 Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or Single Sensor)

P0341 points to a range or performance issue in camshaft position sensor A on bank 1 or a single-sensor setup. The signal exists but does not match expected timing behavior.

Code details

Generic OBD-II · P0

System: Ignition / Misfire
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not replace the cam sensor before checking mechanical timing and signal quality; range faults can be caused by timing movement.

Symptoms of P0341

Rough idle, shaking, or a stumble under acceleration.
A flashing check-engine light during an active misfire.
Power loss and higher fuel consumption.

Common causes of P0341

Worn spark plugs, ignition coils, or plug wires.
Fuel-delivery problems — injectors, pressure, or a lean/rich mixture.
Vacuum leaks, low compression, or a mechanical fault in that cylinder.

Useful checks before replacing parts

Compare camshaft and crankshaft signals, synchronization data, and freeze-frame conditions from the fault event.
Inspect sensor connector fit, wiring, mounting, cam trigger condition, and recent timing or cylinder-head service.
Check for timing-chain stretch, phaser faults, or correlation codes that can make the cam signal appear out of range.

Related OBD-II codes

These nearby ignition / misfire entries can help compare wording and pin down the fault area.