P1286
Air Fuel Ratio Sensor 1 Circuit High Voltage Detected Bank 2
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$39–89 (est.)
Symptoms
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminated
- Unstable engine idling
- Increased emissions of harmful substances
Causes
- Air-fuel ratio sensor malfunction
- Open or short circuit in the sensor circuit
- Poor connection in sensor connectors
- Wiring Harness Problems
- ECU malfunction
How to Fix
- Check the continuity of the AFR sensor circuit
- Check sensor connectors and connections
- Check the resistance and output voltage of the sensor
- Replace AFR sensor if necessary
- Check and, if necessary, replace the computer