P28B0
Cylinder 9 Ion Current Sense Circuit
P28B0 is an OBD-II diagnostic trouble code meaning: Cylinder 9 Ion Current Sense Circuit. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $28–89.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
- Possible misfires
Causes
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Ion current sensor malfunction
- Wiring Harness Problems
- Engine control unit malfunction
How to Fix
- Check the integrity of the sensor circuit
- Inspect and clean connector contacts
- Check sensor resistance
- Scan the control unit for other errors
- If necessary, replace the ion current sensor
Related codes
Error P28B0 by Vehicle Brand
FAQ
What does the P28B0 code mean?
P28B0 is an OBD-II diagnostic trouble code that indicates: Cylinder 9 Ion Current Sense Circuit
What causes a P28B0 error code?
The most common causes of P28B0 include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Ion current sensor malfunction; Wiring Harness Problems.
How do I fix a P28B0 diagnostic trouble code?
To fix P28B0: Check the integrity of the sensor circuit. Inspect and clean connector contacts. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28B0?
Yes, but get it checked soon
How much does it cost to fix P28B0?
The estimated repair cost for P28B0 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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