16561/P0177/000375
From Ross-Tech Wiki
16561/P0177/000375 - Sensor for Fuel Composition / Quality (G446): Implausible Signal
Possible Symptoms
- Possible reduced engine performance
- Check Engine Light
- Decreased fuel efficiency
Possible Causes
- Faulty Fuel Quality Sensor (G446)
- Excessive Ethanol Blends
- Wiring and or connection issues
Possible Solutions
- Check Fuel Quality Sensor (G446)
- Check wiring, connections for damage/corrosion
- Verify Ethanol content in fuel
Special Notes
- The code P0177 sets when when a significant increase in ethanol content in the fuel, (This change occurs quickly, within 200 milliseconds.)