What Does P0341 Mean?
The camshaft position sensor on bank 1 is providing a signal that is outside the expected range or is not performing correctly. The ECM sees the CMP signal but it does not correlate properly with the crankshaft position sensor signal, indicating the camshaft timing relationship is off or the sensor output is distorted. The driver may notice hard starting, rough idle, reduced power, and increased fuel consumption.
Common Causes
30%
Stretched or jumped timing chain altering the camshaft-to-crankshaft phase relationship beyond the acceptable window
25%
Worn or failing camshaft position sensor producing distorted or weak signal waveform
20%
Variable valve timing (VVT) system malfunction holding the camshaft in an unexpected position
15%
Damaged camshaft reluctor ring with worn or chipped features altering the signal pattern
10%
Incorrect CMP sensor air gap or mounting issue
Diagnostic Steps
1
Use an oscilloscope to capture both CKP and CMP waveforms simultaneously — compare the phase relationship between the two signals to determine if the camshaft timing is within specification or has shifted.
2
Check the CMP sensor signal amplitude and waveform quality — look for consistent pulse shape and amplitude; irregular or weak pulses indicate a sensor or reluctor ring issue.
3
If the vehicle has VVT, monitor the camshaft advance/retard angle on live data — if the VVT system is stuck or hunting, it can cause the CMP signal to appear out of range.
4
Check engine oil level and condition — low oil level or degraded oil can cause VVT system malfunction and timing chain tensioner issues that affect camshaft position.
5
Listen for timing chain rattle at startup (especially cold start) — a worn chain and tensioner will rattle briefly on startup before oil pressure builds, and the chain stretch will cause CMP range/performance faults.
Estimated Repair Cost
$100 - $1,200
Parts + labor, varies by vehicle and location
The camshaft position sensor on bank 1 is providing a signal that is outside the expected range or is not performing correctly. The ECM sees the CMP signal but it does not correlate properly with the crankshaft position sensor signal, indicating the camshaft timing relationship is off or the sensor ...
The most common cause of P0341 (Camshaft Position Sensor Circuit Range/Performance (Bank 1)) is: Stretched or jumped timing chain altering the camshaft-to-crankshaft phase relationship beyond the acceptable window
Typical repair costs for P0341 range from $100 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Drive cautiously. The engine is running with compromised valve timing accuracy, which reduces performance but is not immediately dangerous. However, if a timing chain has jumped, continued driving risks further jump or breakage, which on interference engines can cause catastrophic valve and piston damage. Have the timing system inspected promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0341 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Ignition System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
