Possible causes – Faulty Pressure Sources Solenoid Valve– Pressure Sources Solenoid Valve harness is open or shorted– Pressure Sources Solenoid Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Tag: SUBARU
P1103 SUBARU Pressure Sources Switching Solenoid Valve Circuit
Possible causes – Faulty Pressure Sources Switching Solenoid– Pressure Sources Switching Solenoid harness is open or shorted– Pressure Sources Switching Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1122 SUBARU Pressure Sources Switching Valve Circuit High Input
Possible causes – Faulty Pressure Sources Switching Valve– Pressure Sources Switching Valve harness is open or shorted– Pressure Sources Switching Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P0136 SUBARU O2 Sensor Circuit Malfunction Bank 1 Sensor 2
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– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P0137 SUBARU O2 Sensor Circuit Low Voltage
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– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P0139 SUBARU HO2S12 Circuit Slow Response
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– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P0140 SUBARU HO2S12 No Activity Detected
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– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…
P0138 SUBARU HO2S12 Circuit High Voltage
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– Faulty fuel injectors Tech description Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes…
P0158 SUBARU HO2S22 Circuit High Voltage
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure – Faulty fuel injectors– Intake air leaks– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank 2 usually…
P0159 SUBARU HO2S22 Circuit Slow Response
Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the O2 Sensor 2 usually takes…