What does code P0134 mean?
The front oxygen sensor shows no activity and the signal remains fixed.
OBD-II Code
P0134 — Oxygen Sensor Circuit No Activity Detected Bank 1 Sensor 1
The front oxygen sensor shows no activity and the signal remains fixed.
Common symptoms
- Increased fuel consumption
- incorrect air fuel mixture
Possible causes
- Completely failed oxygen sensor
- broken wire
- open circuit
Initial recommendation
Check wiring continuity, verify connector, replace oxygen sensor.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0134 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more codes