P28A8
Cylinder 7 Ion Current Sense Circuit
P28A8 is an OBD-II diagnostic trouble code meaning: Cylinder 7 Ion Current Sense Circuit. Common causes: open or short circuit in the sensor circuit, ion current sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Possible misfire in cylinder 7
Causes
- Open or short circuit in the sensor circuit
- Ion current sensor malfunction
- Problems with the engine control unit
- Wiring harness damage
- Contact corrosion
How to Fix
- Check the integrity of the wiring to the sensor
- Check the resistance of the ion current sensor
- Inspect connectors for corrosion
- Replace sensor if necessary
- Check and update the ECU firmware
Related codes
Error P28A8 by Vehicle Brand
FAQ
What does the P28A8 code mean?
P28A8 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 Ion Current Sense Circuit
What causes a P28A8 error code?
The most common causes of P28A8 include: Open or short circuit in the sensor circuit; Ion current sensor malfunction; Problems with the engine control unit; Wiring harness damage.
How do I fix a P28A8 diagnostic trouble code?
To fix P28A8: Check the integrity of the wiring to the sensor. Check the resistance of the ion current sensor. Inspect connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28A8?
Yes, but get it checked soon
How much does it cost to fix P28A8?
The estimated repair cost for P28A8 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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