Possible causes – Faulty Engine Oil Pressure Switch– Engine Oil Pressure Switch harness is open or shorted– Engine Oil Pressure Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1189 SATURN Description The

Possible causes – Faulty EVAP canister purge solenoid– Faulty Fuel Tank Pressure (FTP) sensor When is the code detected? The Powertrain Control Module (PCM) has detected vacuum flow to the Fuel Tank Pressure (FTP) sensor during a system sealed condition.

Possible causes – Faulty EVAP Purge Solenoid– EVAP Purge Solenoid harness is open or shorted– EVAP Purge Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1655 SATURN Description The Powertrain Control Module

Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech notes On some models, there is a service bulletin for the P1404 code that suggest reprogramming the Powertrain Control Module (PCM) to repair the problem.

Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech notes The P1406 code means that the EGR valve is 10% of the expected position by the Powertrain Control Module (PCM), usually caused by carbon

Possible causes – Faulty Front Oxygen Sensor– Front Oxygen Sensor harness is open or shorted– Front Oxygen Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1132 SATURN Description A Heated Exhaust Oxygen

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1– Vacuum leak– Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted– Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection When is the

Possible causes – Faulty Heated Oxygen Sensor Bank 1 or 2– Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 or 2 circuit poor electrical connection Symptoms – Engine Light ON (or

Possible causes – Faulty Heated Oxygen Sensor Bank 1 or 2– Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 or 2 circuit poor electrical connection Symptoms – Engine Light ON (or

Possible causes – Faulty HO2S Bank 1 Sensor 1– HO2S Bank 1 Sensor 1 harness is open or shorted– HO2S Bank 1 Sensor 1 circuit poor electrical connection When is the code detected? The P1134 is sets if the Powertrain

Possible causes – Faulty Ignition Switch– Ignition Switch harness is open or shorted– Ignition Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

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 code detected? The P1111 code is set when the Powertrain Control Module

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 SATURN Description The

Possible causes – Faulty Intake Camshaft Position sensor– Faulty Camshaft Position Solenoid Valve– Engine mechanical condition – Valve timing off– Intake Camshaft Position sensor harness is open or shorted– Intake Camshaft Position sensor circuit poor electrical connection When is the

Possible causes – Faulty Oxygen sensor– Ignition problem– Fuel injection problem– Engine mechanical condition Tech notes There is a factory service bulletin for the following Saturn models: 2000-2008 Saturn Models2000-2008 Saturn Factory Service Bulletin OBDII Code P1175 Symptoms – Engine

Possible causes – Faulty Powertrain Control Modules (PCM)– Low car battery voltage When is the code detected? If the checksum of the Electronically Erasable Programmable Read Only Memory (EEPROM) does not match a predetermined value by the Powertrain Control Modules

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Intake air leaks– Exhaust gas leaks– Inappropriate fuel pressure–

Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection– Check Throttle Actuator Control (TAC) module connector for water– Binding or bent

Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection– Throttle plate sticking due to carbon build-up– Engine Control Module When is