Camshaft Position Sensor Circuit Intermittent
Your engine's camshaft sensor is sending spotty signals to the computer, like a radio station that keeps cutting in and out. The ECU can't reliably sync ignition and fuel timing, which causes performance issues.
The ECM monitors the camshaft position sensor signal for consistent voltage transitions that correlate with cam rotation. It expects a clean, continuous signal pattern; if the signal drops out, becomes erratic, or fails to sync with crankshaft position, the fault is triggered. This is an intermittent code, meaning the problem is not constant—it comes and goes.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Sensor Signal Voltage | 0.5–4.5V with clean transitions | Intermittent dropouts, noise, or absence of expected pulses |
| Cam-to-Crank Correlation | ±5° timing variance tolerance | Correlation loss for >2 consecutive cycles |
Code P0350 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0350 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.