Powertrain Codes

P0183

Technical Definition:

Fuel Temperature (Sensor A) Circuit High

Trouble Code: P0183
Address: 0x0183
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Temperature Sensor Circuit High Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Fuel Temperature Sensor
– Fuel Temperature Sensor harness is open or shorted
– Fuel Temperature Sensor circuit poor electrical connection

Specific Makes:

P0182

Technical Definition:

Fuel Temperature (Sensor A) Circuit Low

Trouble Code: P0182
Address: 0x0182
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Temperature Sensor Circuit Low Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Fuel Temperature Sensor
– Fuel Temperature Sensor harness is open or shorted
– Fuel Temperature Sensor circuit poor electrical connection

Specific Makes:

P0179

Technical Definition:

Fuel ComPosition Sensor Circuit High

Trouble Code: P0179
Address: 0x0179
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Composition Sensor Circuit High Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted
– FF to VPWR circuit poor electrical connection
– Open in FF sensor signal circuit
– Short to ground in FF sensor signal circuit
– Fuel contamination

Specific Makes:

P0176

Technical Definition:

Fuel ComPosition Sensor Circuit

Trouble Code: P0176
Address: 0x0176
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Composition Sensor Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted
– FF to VPWR circuit poor electrical connection
– Open in FF sensor signal circuit
– Short to ground in FF sensor signal circuit
– Fuel contamination

Specific Makes:

P0177

Technical Definition:

Fuel ComPosition Sensor Circuit Range / Performance

Trouble Code: P0177
Address: 0x0177
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Composition Sensor Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted
– FF to VPWR circuit poor electrical connection
– Open in FF sensor signal circuit
– Short to ground in FF sensor signal circuit
– Fuel contamination

Specific Makes:

P0178

Technical Definition:

Fuel ComPosition Sensor Circuit Low

Trouble Code: P0178
Address: 0x0178
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Composition Sensor Circuit Low Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted
– FF to VPWR circuit poor electrical connection
– Open in FF sensor signal circuit
– Short to ground in FF sensor signal circuit
– Fuel contamination
– Short to VPWR in FF sensor batte

Specific Makes:

P0174

Technical Definition:

System Too Lean (Bank 2)

Trouble Code: P0174
Address: 0x0174
System: Powertrain
Subsystem:
Technical Description:

Possible Causes:

Possible Symptoms:

System Too Lean Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake air leaks
– Faulty front heated oxygen sensor
– Ignition misfiring
– Faulty fuel injectors
– Exhaust gas leaks
– Incorrect fuel pressure
– Lack of fuel
– Faulty Mass Air Flow (MAF) sensor
– Incorrect Positive Crankcase Ventilation (PCV) hose connection

Specific Makes:

– Excessive Fuel Consumption

P0175

Technical Definition:

System Too Rich (Bank 2)

Trouble Code: P0175
Address: 0x0175
System: Powertrain
Subsystem:
Technical Description:

Possible Causes:

Possible Symptoms:

System Too Rich Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty front heated oxygen sensor
– Ignition misfiring
– Faulty fuel injectors
– Exhaust gas leaks
– Incorrect fuel pressure
– Faulty Mass Air Flow (MAF) sensor

Specific Makes:

– Excessive Fuel Consumption

P0170

Technical Definition:

Fuel Trim (Bank 1)

Trouble Code: P0170
Address: 0x0170
System: Powertrain
Subsystem: Fuel and Air Metering
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Trim Malfunction Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake air leaks
– Faulty front heated oxygen sensor
– Ignition misfiring
– Faulty fuel injectors
– Exhaust gas leaks
– Incorrect fuel pressure
– Lack of fuel
– Faulty Mass Air Flow (MAF) sensor
– Incorrect Positive Crankcase Ventilation (PCV) hose connection

Specific Makes:

– Excessive Fuel Consumption