P28C2

Symptoms

• Unstable engine idling
• Reduced engine power
• Increased fuel consumption
• Check Engine Light Illuminates
• Possible misfires

Causes

• Problems with wiring to the ion probe module
• Ion probe module malfunction
• Problems with the engine control unit
• Short circuit in power supply
• Faulty relay or fuse

How to Fix

1. Check the integrity of the wiring to the ion probe module
2. Check the module supply voltage
3. Inspect connectors for corrosion or damage
4. Check the operation of the engine control unit
5. Replace the ion probe module if necessary

Related codes

Error P28C2 by Vehicle Brand