Incorrect Fuel Composition
Fuel composition (e.g. ethanol fraction on flex-fuel vehicles) outside expected range. Wrong fuel filled or sensor fault.
Affected components
- Flex fuel sensor
Common causes
- High likelihood: Wrong fuel filled (e.g. E85 in non-flex)
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.