P1130
Lack Of HO2S Switch - Adaptive Fuel At Limit
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)
Symptoms
- Increased fuel consumption
- Unstable engine operation at idle
- Reduced engine power
- Check Engine light comes on
- Increased level of harmful emissions
Causes
- Oxygen sensor (HO2S) malfunction
- Air leaks in the intake manifold
- Problems with fuel injectors
- Open or short circuit in the sensor circuit
- Engine ECU malfunction
How to Fix
- Check the continuity of the oxygen sensor circuit
- Inspect the intake tract for air leaks
- Check the operation of the fuel injectors
- Replace a faulty oxygen sensor
- If necessary, flash or replace the engine ECU