P130B
Knock Sensor 4 Circuit
P130B is an OBD-II diagnostic trouble code meaning: Knock Sensor 4 Circuit. Common causes: open or short circuit in the sensor circuit, knock sensor 4 malfunction. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- The engine runs less smoothly
- Possible misfires
Causes
- Open or short circuit in the sensor circuit
- Knock sensor 4 malfunction
- Poor contact in the sensor connector
- Wiring harness damage
- ECU problems (rare)
How to Fix
- Check the integrity of the sensor circuit
- Inspect the sensor connector and contacts
- Check the sensor resistance (compare with the norm)
- Replace sensor if necessary
- Clear error codes and check if error is returned
Related codes
FAQ
What does the P130B code mean?
P130B is an OBD-II diagnostic trouble code that indicates: Knock Sensor 4 Circuit
What causes a P130B error code?
The most common causes of P130B include: Open or short circuit in the sensor circuit; Knock sensor 4 malfunction; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a P130B diagnostic trouble code?
To fix P130B: Check the integrity of the sensor circuit. Inspect the sensor connector and contacts. Check the sensor resistance (compare with the norm). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P130B?
Limited driving only, diagnose soon
How much does it cost to fix P130B?
The estimated repair cost for P130B is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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