Category: Chevrolet

P0472 Chevrolet Exhaust Pressure Sensor Low Possible causes – Faulty Exhaust Back Pressure Sensor– Exhaust Back Pressure Sensor harness is open or shorted– Exhaust Back Pressure Sensor circuit poor electrical connection Tech description Replacing the exhaust back pressure usually takes care of the problem What about the obd code? An Exhaust Back Pressure (EBP) signal…

P0473 Chevrolet Exhaust Pressure Sensor High Possible causes – Faulty Exhaust Back Pressure Sensor– Exhaust Back Pressure Sensor harness is open or shorted– Exhaust Back Pressure Sensor circuit poor electrical connection Tech description Replacing the exhaust back pressure usually takes care of the problem What about the obd code? An Exhaust Back Pressure (EBP) signal…

P0464 Chevrolet Fuel Level Sensor Circuit Intermittent Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection What about the obd code? An intermittent low voltage is sent from the sensor is sent to Engine Control Module (ECM). Symptoms – Engine Light ON…

P0465 Chevrolet Purge Flow Sensor Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0466 Chevrolet Purge Flow Sensor Circuit Range/Performance Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0466 Chevrolet Information for specific makes

P0467 Chevrolet Purge Flow Sensor Circuit Low Input Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0467 Chevrolet Information for specific makes

P0468 Chevrolet Purge Flow Sensor Circuit High Input Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0468 Chevrolet Information for specific makes

P0459 Chevrolet EVAP System Purge Control Solenoid High Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a high voltage on…

P0460 Chevrolet Fuel Level Sensor Circuit Possible causes – Faulty Fuel Level Sensor– Fuel Level Sensor harness is open or shorted– Fuel Level Sensor circuit poor electrical connection – Faulty combination meter What about the obd code? Even though the vehicle is parked, a signal being varied is sent from the fuel level sensor to…

P0461 Chevrolet Fuel Level Sensor Circuit Range/Performance Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection What about the obd code? The output signal of the fuel level sensor does not change within the specified range even though the vehicle has been…

P0462 Chevrolet Fuel Level Sensor Circuit Low Input Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection Tech description Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If…

P0463 Chevrolet Fuel Level Sensor Circuit High Input Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection What about the obd code? An excessively high voltage is sent from the sensor is sent to Engine Control Module (ECM). Symptoms – Engine Light…

P0458 Chevrolet EVAP System Purge Control Solenoid Low Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a low voltage on…

P0454 Chevrolet Evaporative Emission Control System Pressure Sensor Intermittent Possible causes – Faulty Evaporative Emission System (EVAP) Pressure sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection What about the obd code? An intermittent voltage signal from EVAP control system pressure sensor…

P0455 Chevrolet EVAP System Large Leak Detected Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking Tech description The P0455 Chevrolet it

P0456 Chevrolet EVAP System Small Leak Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– Evaporative Emission (EVAP) canister or fuel tank leaks– Evaporative Emission (EVAP) system hose leaking– Fuel tank leaking Tech description 2001…

P0457 Chevrolet EVAP System Leak Detected/Fuel Fill Cap Loose Or Missing Possible causes – Damaged, missing or loosely installed fuel filler cap Tech description Check for a loose, missing or damage fuel filler the cap. What about the obd code? EVAP control system has a very large leak such as fuel filler cap fell off…

P0449 Chevrolet EVAP System Vent Valve/Solenoid Circuit Possible causes – Purge Control Valve harness is open or shorted– Purge Control Valve electrical circuit poor connection– Faulty canister vent control valve What about the obd code? The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in…

P0450 Chevrolet EVAP Emission System Pressure Sensor Possible causes – Faulty Evaporative Emission System (EVAP) Pressure Sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? – An improper voltage signal from EVAP…

P0451 Chevrolet Fuel Tank Pressure Sensor Range/Performance Possible causes – Fuel Tank Pressure Sensor– Fuel Tank Pressure sensor harness is open or shorted– Fuel Tank Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? An improper voltage signal from the fuel tank pressure sensor is sent to Engine…