P28B4
Cylinder 10 Ion Current Sense Circuit
P28B4 is an OBD-II diagnostic trouble code meaning: Cylinder 10 Ion Current Sense Circuit. Common causes: open or short circuit in the ion current circuit, ion current sensor malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Possible misfires
Causes
- Open or short circuit in the ion current circuit
- Ion current sensor malfunction
- Wiring Harness Problems
- Engine control unit malfunction
- Poor contact in connectors
How to Fix
- Check the integrity of the ion current circuit
- Check the condition of the ion current sensor
- Inspect the wiring harness for damage
- Check contacts in connectors
- If necessary, replace the sensor or repair the wiring
Related codes
Error P28B4 by Vehicle Brand
FAQ
What does the P28B4 code mean?
P28B4 is an OBD-II diagnostic trouble code that indicates: Cylinder 10 Ion Current Sense Circuit
What causes a P28B4 error code?
The most common causes of P28B4 include: Open or short circuit in the ion current circuit; Ion current sensor malfunction; Wiring Harness Problems; Engine control unit malfunction.
How do I fix a P28B4 diagnostic trouble code?
To fix P28B4: Check the integrity of the ion current circuit. Check the condition of the ion current sensor. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28B4?
Yes, but get it checked soon
How much does it cost to fix P28B4?
The estimated repair cost for P28B4 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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