Category: Buick

P0108 Buick Manifold Absolute Pressure Sensor Circuit High Voltage Possible causes – Faulty Manifold Absolute Pressure sensor– Manifold Absolute Pressure harness is open or shorted– Manifold Absolute Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? An excessively high voltage from the sensor is sent to ECM Symptoms…

P0109 Buick Manifold Absolute Pressure/Barometric Pressure Sensor Intermittent Possible causes – Faulty Manifold Absolute Pressure sensor– Manifold Absolute Pressure harness is open or shorted– Manifold Absolute Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? The sensor signal to the ECM is failing intermittently. Symptoms – Engine Light…

P010A Buick Mass or Volume Air Flow B Circuit Malfunction OBD Code: System: Subsystem:  P010A Buick – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Mass or Volume Air Flow B Circuit Malfunction Location: Analysis: Possible Causes:  Flow B  Circuit Malfunction   Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David…

P0105 Buick Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction Possible causes – Faulty Manifold Absolute Pressure sensor– Manifold Absolute Pressure harness is open or shorted– Manifold Absolute Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? An excessively low or high voltage from the sensor is sent to ECM….

P0101 Buick Mass Air Flow Circuit Range/Performance Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow sensor, try replacing…

P0102 Buick Mass or Volume Air Flow Circuit Low Input Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow…

P0103 Buick Mass Air Flow Sensor Circuit High Input Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow sensor,…

P0104 Buick Mass Air Flow Sensor Throttle Angle and Speed Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow…

P0097 Buick Intake Air Temperature Sensor 2 Circuit Low Input Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a low voltage condition on the Intake Air…

P0098 Buick Intake Air Temperature Sensor 2 Circuit High Voltage Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a high voltage condition on the Intake Air…

P0099 Buick Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0099 Buick Description The Intake Air Temperature (IAT) sensor contains…

P009A Buick Intake Air Temperature / Ambient Air Temperature Correlation OBD Code: System: Subsystem:  P009A Buick – (ASE)  Powertrain  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Intake Air Temperature / Ambient Air Temperature Correlation Location: Analysis: Possible Causes:       Tech description: Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse –…

P0092 Buick Fuel Quantity Solenoid Short Circuit Possible causes – Faulty fuel pressure solenoid– Fuel pressure solenoid harness is open or shorted– Fuel pressure solenoid electrical circuit poor connection What about the obd code? The Engine Control Module (ECM) has detected excessive current in Fuel Quantity Solenoid circuit Symptoms – Engine Light ON (or Service…

P0093 Buick Fuel System Large Leak Detected Possible causes – Fuel system internal leak– Fuel supply pump or injector(s)– Faulty pressure limiter valve– Faulty fuel pressure sensor What about the obd code? Fuel rail pressure lower than expected Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Buick Vehicle:Buick Regal – ?Buick Riviera…

P0094 Buick Fuel System Leak Detected Small Leak Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0094 Buick Description Fuel System Leak Detected Small Leak is the generic definition for the P0094 Buick. Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse…

P0095 Buick Intake Air Temperature Sensor 2 Circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0095 Buick Description Intake Air Temperature Sensor 2 Circuit is the generic definition for the P0095 Buick; Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse…

P0096 Buick Intake Air Temperature Sensor 2 Circuit Range/Performance Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a performance fault with the Intake Air Temperature (IAT)…

P0090 Buick Fuel Pressure Regulator Control Circuit Possible causes – Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Engine Control Module (ECM) What about the obd code? If the current is outside of the expected range, DTC P0090 Buick will set. Symptoms –…

P0091 Buick Fuel Pressure Regulator Solenoid 1 Control Circit Low Voltage Possible causes – Faulty fuel pressure regulator– Fuel pressure regulator harness is open or shorted– Fuel pressure regulator electrical circuit poor connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David…