P0341

What it means

P0341 is the generic code for a range or performance fault in the camshaft position sensor A circuit on bank 1 or a single-sensor engine. The engine control unit compares the camshaft signal with the crankshaft signal and has found the timing relationship implausible, or the camshaft signal is erratic, even though the circuit is not completely open or shorted.

Symptoms

• Engine management light on
• Long cranking or intermittent hard starting
• Rough running or misfire
• Loss of power or poor acceleration
• Engine running in limp mode
• Occasional stalling

Possible causes

• Camshaft and crankshaft timing out of correlation due to a stretched or slipped timing chain or belt, or incorrect assembly after repairlikely
• Faulty camshaft position sensor giving a weak or erratic signallikely
• Damaged, chafed or corroded wiring or loose connector terminals in the sensor circuitpossible
• Damaged, dirty or loose reluctor wheel or trigger wheel, or an incorrectly seated sensorpossible
• Oil contamination of the sensor or connector, or a fault in the variable valve timing system affecting camshaft positionpossible
• Faulty crankshaft position sensor or its signal, upsetting the correlation checkpossible
• Fault within the engine control unitrare

How to diagnose

1. Read all stored codes and freeze frame data, and note whether crankshaft sensor or variable valve timing codes are also present
2. Visually inspect the sensor, its wiring and connector for oil, chafing, heat damage, corrosion and a secure fit
3. Check the sensor mounting and air gap or seating, and look for debris on the sensor tip
4. With a scan tool, compare live camshaft and crankshaft sensor data and any cam timing deviation or correction values while cranking and idling
5. Check engine oil level and condition, as poor oil or sludge can affect timing components and variable valve timing
6. Test the sensor supply, earth and signal wires for continuity, shorts and voltage drop, following the manufacturer's wiring data for the specific model
7. Scope the camshaft and crankshaft signals together to check the pattern and relative timing, and inspect the reluctor wheel if the signal looks wrong
8. Inspect timing chain or belt condition and verify valve timing mechanically if signals suggest a correlation fault

How to fix

• Repair or replace damaged wiring and clean or renew corroded connector terminals
• Replace the camshaft position sensor if it fails testing, and make sure it is correctly seated and secured
• Correct the valve timing, and replace the timing chain, belt, tensioner or guides if stretched or worn
• Replace or secure a damaged or loose reluctor wheel
• Repair the variable valve timing fault or oil supply problem and renew the oil and filter if contaminated
• Replace a faulty crankshaft position sensor if its signal is found to be the cause

Can I keep driving?

Nearby codes

• P0340GenericCamshaft Position Sensor A Circuit Bank 1 or Single Sensor
• P0342GenericCamshaft Position Sensor A Circuit Low Bank 1 or Single Sensor