P1134
HO2S Transition Time Ratio Bank 1 Sensor 1
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Dips during acceleration
- Check Engine Light Is On
- Reduced engine power
Causes
- Faulty oxygen sensor
- Sensor circuit damage
- Air leaks in the intake manifold
- Faulty fuel injectors
- Problems with the fuel pressure regulator
How to Fix
- Check the condition of the oxygen sensor
- Check the integrity of the sensor circuit
- Eliminate possible air leaks
- Check the operation of the fuel injectors
- Check fuel pressure regulator