P0341 on the 6.7L Power Stroke indicates a range or performance problem with the camshaft position (CMP) sensor signal. The PCM uses the cam signal alongside the crank signal to time fuel injection and identify cylinder position, so a fault can cause hard starting and rough running. This guide explains P0341 and how to resolve it.
What P0341 means
P0341 is "Camshaft Position Sensor A Circuit Range/Performance." The PCM expects the cam signal to correlate with the crankshaft signal in a specific pattern. When the cam signal is erratic, missing pulses, or out of sync with the crank, the PCM sets P0341. On the 6.7L Power Stroke, the crank and cam signals work together for injection timing, so correlation is important for a smooth start and clean running.
Common causes
- A failing camshaft position sensor
- Damaged cam reluctor / tone wheel teeth
- Wiring or connector faults at the sensor
- Metal debris on the sensor tip
- Improper air gap or a loose sensor
- Crank/cam correlation issues
Symptoms
- Check engine light with P0341 stored
- Extended cranking or hard starting
- Rough running or hesitation
- Occasional stalling
- Reduced power
- Related crank/cam correlation codes
How to diagnose it
Scan all codes and note whether the fault is intermittent. View live data for the cam and crank signals during cranking and running to see if the cam signal drops out or loses correlation. Inspect the CMP sensor, connector, and wiring for damage, corrosion, and heat exposure. Check the sensor tip for debris and confirm it is seated with the correct air gap. Inspect the reluctor wheel for damaged teeth. Confirm whether the code is a standalone cam fault or part of a correlation problem with the crank signal.
How to fix it
Replace a failed CMP sensor with a quality part and repair any wiring or connector faults. Remove debris from the sensor tip and confirm proper seating. If the reluctor wheel is damaged, address that as well. After the repair, clear the code and verify stable cam and crank signals with good correlation during cranking and running, and confirm a normal start so P0341 does not return.
FAQ
Will P0341 keep my truck from starting?
It can cause extended cranking or hard starts. In some cases the engine will still start using the crank signal, but running may be rough.
Is it worth carrying a spare cam sensor?
Many owners keep a spare CMP sensor because it is a small, low-cost part that can strand the truck if it fails on the road.
How do I know if it is the sensor or the tone wheel?
If the sensor, wiring, and air gap are good but the signal is still erratic, inspect the reluctor wheel for damaged teeth.
Need parts to fix this code? The team at sales@coredieselparts.com can match the correct sensor, injector, or emissions component to your engine and model year.
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