Powertrain
generic / SAE
P0177
Fuel Composition Sensor Circuit Range / Performance
The flex-fuel composition sensor signal is within electrical limits but does not match expected values for the current fuel mix or rate-of-change is implausible.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 77
Possible causes
- Sensor drifted out of calibration high
- Fuel contaminated (water, dirt) medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–500 €
- Estimated time: 0.5–2 h
- Component: flex fuel composition sensor
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012