P0176
Fuel Composition Sensor Circuit
1999-2000 BMW 323i E46 2.5L I6
Low SeverityPowertrainGeneric (SAE)
Description
Malfunction in the fuel composition sensor circuit, used in flex-fuel vehicles to detect ethanol content.
Symptoms
- Check Engine Light
- Poor driveability on E85
- Incorrect fueling for fuel type
Common Causes
- Faulty fuel composition sensor
- Wiring damage
- Sensor contamination
Diagnostic Steps
- Test sensor output
- Inspect wiring
- Check for contamination
Repair Notes
Replace fuel composition sensor.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0176 on Other Vehicles
Common Questions
What does code P0176 mean on a 1999-2000 BMW 323i E46?
P0176 stands for "Fuel Composition Sensor Circuit". Malfunction in the fuel composition sensor circuit, used in flex-fuel vehicles to detect ethanol content.
What are the symptoms of P0176 on a BMW 323i E46?
Common symptoms of P0176 include: Check Engine Light, Poor driveability on E85, Incorrect fueling for fuel type.
What causes P0176 on a 1999-2000 BMW 323i E46?
Common causes of P0176 include: Faulty fuel composition sensor, Wiring damage, Sensor contamination.