What does code P0164 mean?
Excessively high voltage detected from the oxygen sensor indicating rich mixture or short circuit
OBD-II Code
P0164 — Oxygen Sensor Circuit High Voltage Bank 2 Sensor 3
Excessively high voltage detected from the oxygen sensor indicating rich mixture or short circuit
Common symptoms
- Dark exhaust smoke
- strong odor
- high fuel consumption
Possible causes
- Signal shorted to voltage
- damaged sensor
- excessive fuel delivery
Initial recommendation
Inspect wiring, verify fuel pressure and 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
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