P0158 Buick 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…
Category: Buick
P0152 Buick HO2S21 Sensor Circuit High Voltage
P0153 Buick HO2S21 Sensor Circuit Slow Response Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front 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 Front…
P0153 Buick HO2S21 Sensor Circuit Slow Response
P0154 Buick A/F Sensor 21 Heater System Malfunction Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front 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…
P0154 Buick A/F Sensor 21 Heater System Malfunction
P0155 Buick A/F Sensor 21 Heater System Malfunction Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical…
P0155 Buick A/F Sensor 21 Heater System Malfunction
P0156 Buick HO2S22 Sensor Range/Performance Condition 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…
P0156 Buick HO2S22 Sensor Range/Performance Condition
P0157 Buick O2 Sensor Circuit Low Voltage Bank 2 Sensor 2 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…
P0150 Buick Air Fuel Ratio Circuit Bank 2 Sensor 1
P0151 Buick HO2S21 Sensor Circuit Low Voltage Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front 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…
P0151 Buick HO2S21 Sensor Circuit Low Voltage
P0152 Buick HO2S21 Sensor Circuit High Voltage Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Intake air leaks may be faulty– Exhaust gas leaks– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors Tech description…
P0143 Buick Heated Oxygen Sensor 3 Heater Control Circuit High
P0144 Buick O2 Sensor Circuit High Voltage Bank 1 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning…
P0144 Buick O2 Sensor Circuit High Voltage Bank 1 Sensor 3
P0145 Buick Heated Oxygen Sensor 3 Circuit Slow Response Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– High…
P0145 Buick Heated Oxygen Sensor 3 Circuit Slow Response
P0146 Buick O2 Sensor Circuit No Activity Detected Bank 1 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes…
P0146 Buick O2 Sensor Circuit No Activity Detected Bank 1 Sensor 3
P0147 Buick O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection What about the obd code? During testing the oxygen sensor…
P0147 Buick O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 3
P0148 Buick High Pressure Common Rail Checksum Possible causes – Fuel Leaks– Faulty Fuel Control Actuator– Faulty Fuel Pressure Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0148 Buick Description The Fuel Control Actuator (FCA) is an electronically controlled solenoid valve. The ECM controls the amount of fuel that enters the…
P0140 Buick HO2S12 Sensor Circuit No Activity Detected
P0141 Buick O2 Sensor 1/2 Heater Performance Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection– Faulty…
P0141 Buick O2 Sensor 1/2 Heater Performance
P0142 Buick O2 Sensor Circuit Malfunction Bank 1 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care of…
P0142 Buick O2 Sensor Circuit Malfunction Bank 1 Sensor 3
P0143 Buick Heated Oxygen Sensor 3 Heater Control Circuit High Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 3– Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)–…
P0138 Buick HO2S12 Circuit High Voltage
P0139 Buick HO2S Circuit Slow Response 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…
P0139 Buick HO2S Circuit Slow Response Bank 1 Sensor 2
P0140 Buick HO2S12 Sensor Circuit 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…
P0133 Buick HO2S11 Sensor Circuit Slow Response
P0134 Buick O2 Sensor Circuit No Activity Detected Bank 1 Sensor 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty–…
P0134 Buick O2 Sensor Circuit No Activity Detected Bank 1 Sensor 1
P0135 Buick O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit…