P28AC
Cylinder 8 Ion Current Sense Circuit
P28AC is an OBD-II diagnostic trouble code meaning: Cylinder 8 Ion Current Sense Circuit. Common causes: open or short circuit in the ion current circuit, malfunction of the ion current sensor of the 8th cylinder. Estimated repair cost: $17–56.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Check Engine Light Illuminates
- Reduced engine power
- Misfire in cylinder 8
Causes
- Open or short circuit in the ion current circuit
- Malfunction of the ion current sensor of the 8th cylinder
- Damage to the sensor connector
- Problems with the engine control unit
- Corrosion of contacts in the circuit
How to Fix
- Check the integrity of the ion current circuit of the 8th cylinder
- Inspect the connectors and contacts of the sensor for damage
- Check the functionality of the ion current sensor
- If necessary, replace the sensor or repair the wiring
- Reset the error code and check if it appears again
Related codes
Error P28AC by Vehicle Brand
FAQ
What does the P28AC code mean?
P28AC is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Ion Current Sense Circuit
What causes a P28AC error code?
The most common causes of P28AC include: Open or short circuit in the ion current circuit; Malfunction of the ion current sensor of the 8th cylinder; Damage to the sensor connector; Problems with the engine control unit.
How do I fix a P28AC diagnostic trouble code?
To fix P28AC: Check the integrity of the ion current circuit of the 8th cylinder. Inspect the connectors and contacts of the sensor for damage. Check the functionality of the ion current sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28AC?
Yes, but get it checked soon
How much does it cost to fix P28AC?
The estimated repair cost for P28AC is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat