MotorCodex Español

P0341 — Camshaft Position (CMP) Sensor — Circuit Range/Performance

Moderate

Quick answer

P0341 means the cam sensor’s the signal exists but doesn’t make sense for the operating conditions — the sensor is talking, just not telling a believable story. Many engines still run on the crank signal alone — with longer cranking, reduced power, or batch-fired injection — so the symptom is often “runs, but not right.” On others it stalls or won’t start. Diagnose with live data before buying parts.

What it means

The camshaft position (cmp) sensor tells the engine computer which cylinder is on its compression stroke, so the computer can sequence injectors and (on many engines) coil firing. P0341 sets when the signal exists but doesn’t make sense for the operating conditions — the sensor is talking, just not telling a believable story for long enough that the computer stops trusting it.

Range/performance codes are the thinking-person’s variant: the circuit is electrically alive, but the value disagrees with what other sensors imply. That means the cause can be the sensor drifting — or the engine genuinely operating outside what the sensor should ever see (a real mechanical or vacuum problem).

While the signal is untrusted, the computer substitutes a safe default value. The engine runs, but on assumptions instead of measurements — that’s the drivability change you feel.

P0341 symptoms: what you'll notice

  • Longer-than-normal cranking before the engine starts.
  • The engine runs, but not right — down on power, slightly rough, and thirstier than usual.
  • Occasional stalling, or on some engines a crank-but-no-start.
  • Misfire-like stumbles as the injection falls back to a cruder firing mode.

Common causes

Ordered from most to least likely.

  1. 1.

    Failed or drifting cam sensor

    Age and heat cycles take these out.

  2. 2.

    Wiring or connector damage

    Always inspected before parts are bought.

  3. 3.

    Stretched timing chain / jumped timing

    Especially on engines known for chain wear — the sensor is reporting a real mechanical condition.

  4. 4.

    Lost 5V reference or sensor ground (where applicable)

    If several sensors fault together, suspect a shared reference circuit rather than coincidence.

How to fix it: diagnosis, step by step

Cheapest and most likely checks first.

  1. 1 Read the freeze frame

    Note when P0341 sets — cold start, warm idle, under load, over bumps. The conditions narrow the cause dramatically, especially for intermittent faults.

  2. 2 Inspect connector and harness

    Unplug the sensor; check for corrosion, bent or spread pins, and chafed insulation along the harness run. Re-seat firmly. This free step resolves a remarkable share of circuit codes.

  3. 3 Watch it in live data

    Scanners that show cam/crank correlation make this easy: the two signals must agree. A correlation error with a healthy circuit often means the timing chain has stretched — a mechanical story, not electrical.

  4. 4 Rule out the timing side

    Range/performance versions of this code frequently mean cam-to-crank timing is off: stretched chain, jumped tooth, or a failed variable-timing actuator. Check for VVT codes and listen for chain noise before condemning the sensor.

  5. 5 Wiggle-test if intermittent

    Engine running, data live: gently flex the harness and tap the sensor while watching the reading. A glitch you can provoke is a fault you can find.

  6. 6 Replace with a quality part

    If measurements condemn the sensor, buy OEM or a reputable brand — bargain sensors re-set these codes often enough to cost more in time than they save in money.

Parts & tools you may need

Disclosure: some links are affiliate links (including the Amazon Associates program). If you buy through them, we may earn a commission at no extra cost to you.

Related codes

Frequently asked questions

What does code P0341 mean?
P0341 means the cam sensor’s the signal exists but doesn’t make sense for the operating conditions — the sensor is talking, just not telling a believable story. It’s moderately serious — you can usually keep driving gently, but diagnose it soon.
Can I drive with P0341?
Usually, in its degraded mode — but diagnose soon: if the real cause is timing drift, it only goes one direction.
Is it the sensor or the wiring?
Even odds — which is why the connector inspection and live-data check come before the parts counter. Ten minutes of looking routinely saves a misdiagnosed part.
Why did the code return after a new sensor?
Because the circuit, not the sensor, was the fault — or the replacement was low quality. Re-do the wiring inspection the first repair skipped.
What does the computer do meanwhile?
It substitutes a default value and keeps the engine running on assumptions. Functional, but you pay in drivability and fuel until the real measurement comes back.
Ask Codi