P1381
Cylinder Position Sensor Intermittent Interruption
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Unstable engine idling
- Power dips during acceleration
- Increased fuel consumption
- Difficulty starting the engine
- Check Engine Light Illuminates
Causes
- Poor contact in the cylinder position sensor connector
- Open or short circuit in the sensor circuit
- Malfunction of the cylinder position sensor itself
- Interference from other electronic components
- Problems with the wiring harness near the sensor
How to Fix
- Check the condition of the sensor connector and contacts
- Test sensor circuit integrity
- Check the sensor resistance (compare with standards)
- Replace cylinder position sensor if necessary
- Check and, if necessary, replace damaged wires