Faulty or contaminated camshaft position sensor B; Damaged, chafed or corroded wiring or connector to the sensor, including poor earth or supply; Stretched timing chain or belt, or jumped or incorrect camshaft timing; Damaged or loose trigger wheel or reluctor on the camshaft; Variable valve timing actuator or control valve fault, or low or dirty oil affecting the phaser; Electrical interference from a failing crankshaft sensor or poor battery or charging voltage; Engine control unit fault.

P1341

Camshaft Position Sensor B Range / Performance.

Other
Powertrain
Manufacturer code
Medium severity

How this code is built

P: SystemPowertrain
1: Defined byThe manufacturer
3: AreaIgnition system or misfire
41: FaultThe specific fault in that area

What it means

P1341 is set when the engine control unit sees the signal from camshaft position sensor B as implausible or out of range compared with the crankshaft signal or the expected pattern. Which camshaft 'B' refers to (bank, intake or exhaust) depends on the make and engine, so check the manufacturer's data for the vehicle. The fault can come from the sensor, its wiring, the trigger wheel, or camshaft timing that is out of position.

Symptoms

Engine warning light on
Longer cranking or hard starting
Rough idle or hesitation under load
Loss of power or the engine running in a reduced-power mode
Poor fuel economy
Occasional stalling

Possible causes

Faulty or contaminated camshaft position sensor Blikely
Damaged, chafed or corroded wiring or connector to the sensor, including poor earth or supplylikely
Stretched timing chain or belt, or jumped or incorrect camshaft timingpossible
Damaged or loose trigger wheel or reluctor on the camshaftpossible
Variable valve timing actuator or control valve fault, or low or dirty oil affecting the phaserpossible
Electrical interference from a failing crankshaft sensor or poor battery or charging voltagerare
Engine control unit faultrare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting engine speed, load and temperature when the fault set. Look for related crankshaft or other camshaft codes.
Check the engine oil level and condition, as this affects variable valve timing operation.
Inspect the sensor, its connector and the wiring for damage, oil contamination, corrosion, chafing or a loose fit.
Check the sensor supply, signal and earth circuits for continuity, shorts and resistance against the manufacturer's wiring data.
Check battery condition and charging voltage, as low voltage can distort sensor signals.
Compare the live camshaft and crankshaft signals, or view the waveform on a scope, to check for a missing, weak or noisy pattern.
Check the variable valve timing actuator values and any cam timing correction figures with a scan tool.
If the signal looks wrong but the sensor and wiring are good, inspect the trigger wheel and verify the cam timing mechanically, following the procedure for that engine.

How to fix

Replace the camshaft position sensor if it fails testing, and make sure it is seated correctly.
Repair or replace damaged wiring or connectors, and clean up any corrosion.
Correct the cam timing and replace a stretched or worn chain, belt, tensioner or guides as needed.
Replace a damaged or loose trigger wheel.
Replace a faulty variable valve timing actuator or control valve, and change the oil and filter if it is dirty or incorrect.
Clear the code and road test, then confirm it does not return, only after the cause has been repaired.

Can I keep driving?

Medium severity

Short, gentle trips are usually possible, but get it checked soon because the engine may run poorly or stall. If you suspect a timing fault, or notice rattling, misfiring or severe power loss, stop driving to avoid engine damage.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.