Powertrain
generic / SAE
P0176
Fuel Composition Sensor Circuit Malfunction
The ECU detects an electrical fault in the flex-fuel composition sensor circuit. The sensor measures ethanol content (E0–E85) in the fuel; signal missing, shorted or out of plausible range.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 76
Possible causes
- Flex-fuel sensor failed high
- Wiring or connector fault medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–500 €
- Estimated time: 0.5–2 h
- Component: flex fuel composition sensor
- Component: sensor wiring
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012