Error code
OBD2 P0179
OBD2P0179
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Fuel Composition Sensor Circuit High.
Severity
moderateCan drive, but monitor for worsening symptoms and address promptly.
Summary
P0179 indicates that the fuel composition sensor is providing an abnormally high signal, likely due to electrical issues or sensor malfunction. This sensor is typically located in the engine's intake system.
Common Causes
- Wiring short to positive
- Fuel composition sensor failure
Fixes
- Replace the fuel composition sensor or repair wiring issues.
FAQ
What does P0179 mean?
P0179 indicates a high input from the fuel composition sensor, suggesting electrical problems or sensor failure.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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- P0106Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
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- P0111Intake Air Temperature Sensor 1 Circuit Range/Performance