Category: Chevrolet

P2179 Chevrolet System Too Lean Off Idle (Bank 2) OBD Code: System: Subsystem:  P2179 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Lean Off Idle (Bank 2) Location: Analysis: Possible Causes:  Bank 2  Out of Expected Range – Too Lean   Tech description:

P2175 Chevrolet Throttle Actuator Control System Low Airflow Detected OBD Code: System: Subsystem:  P2175 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Throttle Actuator Control System Low Airflow Detected Location: Analysis: Possible Causes:       Tech description:

P2176 Chevrolet Throttle Actuator Control System Idle Position Not Learned OBD Code: System: Subsystem:  P2176 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Throttle Actuator Control System Idle Position Not Learned Location: Analysis: Possible Causes:       Tech description:

P2177 Chevrolet System Too Lean Off Idle (Bank 1) OBD Code: System: Subsystem:  P2177 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Lean Off Idle (Bank 1) Location: Analysis: Possible Causes:  Bank 1  Out of Expected Range – Too Lean   Tech description:

P2178 Chevrolet Fuel Trim System Rich at Cruise or Accel Possible causes – High fuel pressure– Leaking fuel injector or pressure regulator– Failed Mass Air Flow (MAF) sensor What about the obd code? The Engine Control Module (ECM) has detected a rich air/fuel ratio Symptoms – Engine Light ON (or Service Engine Soon Warning Light)…

P2172 Chevrolet Throttle Actuator Control System Sudden High Airflow Detected OBD Code: System: Subsystem:  P2172 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Throttle Actuator Control System Sudden High Airflow Detected Location: Analysis: Possible Causes:       Tech description:

P2173 Chevrolet Throttle Actuator Control System High Airflow Detected OBD Code: System: Subsystem:  P2173 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Throttle Actuator Control System High Airflow Detected Location: Analysis: Possible Causes:       Tech description:

P2174 Chevrolet Low Airflow/Restriction Detected Instantaneous Accumulation Possible causes – Restricted air inlet– Open or short circuit condition– Failed Manifold Absolute Pressure (MAP) sensor– Failed Throttle Position (TP) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2174 Chevrolet Description The calculated Manifold Absolute Pressure (MAP) value is greater than the expected…

P2170 Chevrolet Exhaust Pressure Regulator Vent Solenoid Control Circuit Low OBD Code: System: Subsystem:  P2170 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Exhaust Pressure Regulator Vent Solenoid Control Circuit Low Location: Analysis: Possible Causes:    End of Range – Circuit Lower Than Expected   Tech description:

P2171 Chevrolet Exhaust Pressure Regulator Vent Solenoid Control Circuit High OBD Code: System: Subsystem:  P2171 Chevrolet – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Exhaust Pressure Regulator Vent Solenoid Control Circuit High Location: Analysis: Possible Causes:    End of Range – Circuit Higher Than Expected   Tech description: