P0328
Knock/Combustion Vibration Sensor A Circuit High
P0328 is an OBD-II diagnostic trouble code meaning: Knock/Combustion Vibration Sensor A Circuit High. Common causes: faulty knock sensor, open or shorted wiring harness. Estimated repair cost: $22–89.
Symptoms
- Loss of engine power
- Unstable idling
- Increased fuel consumption
- Detonation knocks
Causes
- Faulty knock sensor
- Open or shorted wiring harness
- Poor contact in the sensor connector
- Grounding problems
- Mechanical engine problems
How to Fix
- Check the integrity of the knock sensor wiring harness
- Check the contacts in the sensor connector for oxides or damage
- Check knock sensor resistance (compare with manufacturer specifications)
- Replace knock sensor if necessary
- Check sensor circuit grounding
Related codes
Error P0328 by Vehicle Brand
FAQ
What does the P0328 code mean?
P0328 is an OBD-II diagnostic trouble code that indicates: Knock/Combustion Vibration Sensor A Circuit High
What causes a P0328 error code?
The most common causes of P0328 include: Faulty knock sensor; Open or shorted wiring harness; Poor contact in the sensor connector; Grounding problems.
How do I fix a P0328 diagnostic trouble code?
To fix P0328: Check the integrity of the knock sensor wiring harness. Check the contacts in the sensor connector for oxides or damage. Check knock sensor resistance (compare with manufacturer specifications). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0328?
Limited driving only, diagnose soon
How much does it cost to fix P0328?
The estimated repair cost for P0328 is $22–89. Actual cost depends on your vehicle, location, and labor rates.
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