P1283
Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 2
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)
Symptoms
- Increased fuel consumption
- Reduced engine power
- Unstable engine idling
- Check Engine Light Is On
- Dips during acceleration
Causes
- Air leak in the intake tract
- AFR sensor malfunction
- Problems with the fuel pump or injectors
- Dirty or faulty air flow sensor
- AFR sensor circuit malfunction
How to Fix
- Check the intake tract for air leaks
- Check the condition and connection of the AFR sensor
- Check the operation of the fuel pump and injectors
- Check the condition of the mass air flow sensor
- Check the AFR sensor circuit for opens and shorts