P1174 PONTIAC Fuel Trim Cylinder Balance Bank 1

Possible causes – Faulty Oxygen sensor– Ignition problem– Fuel injection problem– Engine mechanical condition Tech description There is a factory service bulletin for the following Pontiac models: 2000-2001 Pontiac Transport2000-2002 Pontiac Firebird2000-2008 Pontiac Bonneville2000-2008 Pontiac Grand Am2000-2008 Pontiac Grand Prix2000-2008 Pontiac Sunfire2001-2008 Pontiac Aztek2002-2008 Pontiac Montana2000-2008 Pontiac Factory Service Bulletin OBDII Code P1174 Symptoms –…

P0325 PONTIAC Knock Sensor Circuit Malfunction

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0325 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…

P0327 PONTIAC Knock Sensor Circuit Low Input

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0327 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…

P0332 PONTIAC Knock Sensor 2 Circuit

Possible causes – Faulty knock sensor– Knock sensor circuit poor electrical connection– Knock sensor harness is open or shorted– Faulty Powertrain Control System (PCM) Tech description The P0332 code means that the Knock Sensor is not working properly. Problems with the knock sensor will not cause an engine performance problems. Replacing the knock sensor usually…

P0654 PONTIAC Engine Speed Output Circuit

Possible causes – Faulty Instrument Cluster– Instrument Cluster harness is open or shorted– Instrument Cluster circuit poor electrical connection– Faulty PCM When is the obd code mean? If the fault detection circuit senses a voltage other than what is expected, the fault line status changes causing the P0654 code will set. Symptoms – Engine Light…

U0141 PONTIAC Lost Communication With Instrument Panel Module

Possible causes – Faulty Instrument Panel Module (IPM)– IPM harness is open or shorted– IPM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0141 PONTIAC OBD Code Description Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications…

P0113 PONTIAC Intake Air Temperature Circuit High Input

Possible causes – Faulty Intake Air Temperature (IAT) sensor– Dirty air filter– Intake Air Temperature (IAT) sensor harness is open or shorted– Intake Air Temperature (IAT) sensor circuit poor electrical connection When is the obd code mean? – An excessively high voltage from the sensor is sent to ECM. Symptoms – Engine Light ON (or…

P0112 PONTIAC Intake Air Temperature Sensor Circuit Low Voltage

Possible causes – Faulty Intake Air Temperature (IAT) sensor– Dirty air filter– Intake Air Temperature (IAT) sensor harness is open or shorted– Intake Air Temperature (IAT) sensor circuit poor electrical connection When is the obd code mean? When the PCM senses a signal voltage lower than the normal operating range of the sensor, this DTC…

P1111 PONTIAC Intake Air Temperature Sensor Circuit Intermittent 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 When is the obd code mean? The P1111 code is set when the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the sensor….

P1112 PONTIAC Intake Air Temperature Sensor Circuit Intermittent Low 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 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1112 PONTIAC OBD Code Description The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes resistance based…