Description Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1138 Alfa Romeo OBD Code Description Lack Of HO2S12 Switch – Sensor Indicates Rich is one of the definitions for the P1138 Alfa Romeo; however your vehicle’s manufacturer may have a different definition for the P1138 Alfa Romeo code. Please check below for…
Tag: P1138
P1138 Acura Lack Of HO2S12 Switch – Sensor Indicates Rich
Description Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1138 Acura OBD Code Description Lack Of HO2S12 Switch – Sensor Indicates Rich is one of the definitions for the P1138 Acura; however your vehicle’s manufacturer may have a different definition for the P1138 Acura code. Please check below for your specific make….
P1138 VOLKSWAGEN Long Term Fuel Trim Add. Fuel B2 System Too Lean
Possible causes – Intake air leak– Faulty O2 Sensor– Faulty Mass Air Flow (MAF) Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Tech description 2002 Volkswagen Passat User Submitted Video Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1138 SUZUKI HO2S Circuit High Voltage During Decel Fuel Cut-Off Sensor 2
Possible causes – Vacuum leak on engine– Faulty Failed Mass Air Flow (MAF)– Faulty HO2S– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1138 NISSAN Swirl Control Valve Control System Performance
Possible causes – Faulty Swirl Control Valve Control Position Sensor– Swirl Control Valve Control Position Sensor harness is open or shorted– Swirl Control Valve Control Position Sensor circuit poor electrical connection– Faulty Swirl Control Valve When is the obd code mean? The P1138 code is detected when the target opening angle of swirl control valve…
P1138 MAZDA Rear O2 Sensor Self Test Fault
Possible causes – Faulty Rear O2 Sensor– Rear O2 Sensor harness is open or shorted– Rear O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1138 ISUZU HO2S 2 Voltage Stays High Rich Condition
Possible causes – Leaking injector or regulator– Engine ignition misfire– Engine mechanical condition– Faulty HO2S– HO2S Sensor 2 harness is open or shorted– HO2S Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1138 INFINITI Swirl Control Valve Control System Performance
Possible causes – Faulty Swirl Control Valve Control Position Sensor– Swirl Control Valve Control Position Sensor harness is open or shorted– Swirl Control Valve Control Position Sensor circuit poor electrical connection– Faulty Swirl Control Valve When is the obd code mean? The P1138 code is detected when the target opening angle of swirl control valve…
P1138 GMC HO2S Bank 1 Sensor 2 Rich or High Voltage
Possible causes – Faulty HO2S Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1138 FORD Lack Of O2 Switches Bank 1 Sensor 2 Rich
Possible causes – Faulty HO2S Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection When is the obd code mean? The test fails if the Powertrain Control Module (PCM) does not detect the output of the HO2S in a calibrated amount…