P0177
Fuel Composition Sensor Circuit Range/Performance
P0177 is an OBD-II diagnostic trouble code meaning: Fuel Composition Sensor Circuit Range/Performance. Common causes: fuel composition sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Power Loss
Causes
- Fuel composition sensor malfunction
- Wiring harness damage
- Poor contact in the sensor circuit
- Problems with the ECU
How to Fix
- Check the integrity of the wiring harness
- Check sensor connections
- Test the fuel composition sensor
- Replace sensor if necessary
Related codes
Error P0177 by Vehicle Brand
FAQ
What does the P0177 code mean?
P0177 is an OBD-II diagnostic trouble code that indicates: Fuel Composition Sensor Circuit Range/Performance
What causes a P0177 error code?
The most common causes of P0177 include: Fuel composition sensor malfunction; Wiring harness damage; Poor contact in the sensor circuit; Problems with the ECU.
How do I fix a P0177 diagnostic trouble code?
To fix P0177: Check the integrity of the wiring harness. Check sensor connections. Test the fuel composition sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0177?
Limited driving only, diagnose soon
How much does it cost to fix P0177?
The estimated repair cost for P0177 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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