P28A0
Cylinder 5 Ion Current Sense Circuit
P28A0 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Ion Current Sense Circuit. Common causes: open or short circuit in the ion current circuit, ion current sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced engine power
- Misfire in cylinder 5
Causes
- Open or short circuit in the ion current circuit
- Ion current sensor malfunction
- Problems with connectors or wiring harness
- Engine control unit malfunction
- Damage to wire insulation
How to Fix
- Check the integrity of the ion current circuit
- Inspect connectors and wiring harness for damage
- Check the resistance of the ion current sensor
- If necessary, replace the ion current sensor
- Check and reflash the engine control unit
Related codes
Error P28A0 by Vehicle Brand
FAQ
What does the P28A0 code mean?
P28A0 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Ion Current Sense Circuit
What causes a P28A0 error code?
The most common causes of P28A0 include: Open or short circuit in the ion current circuit; Ion current sensor malfunction; Problems with connectors or wiring harness; Engine control unit malfunction.
How do I fix a P28A0 diagnostic trouble code?
To fix P28A0: Check the integrity of the ion current circuit. Inspect connectors and wiring harness for damage. Check the resistance of the ion current sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28A0?
Yes, but get it checked soon
How much does it cost to fix P28A0?
The estimated repair cost for P28A0 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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