What does code P0179 mean?
High signal detected from the fuel composition sensor causing incorrect ethanol readings
OBD-II Code
P0179 — Fuel Composition Sensor Circuit High Input
High signal detected from the fuel composition sensor causing incorrect ethanol readings
Common symptoms
- Increased fuel consumption
- rich mixture
Possible causes
- Signal shorted to voltage
- damaged sensor
- fuel contamination
Initial recommendation
Check wiring, verify fuel quality and replace 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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