Description OBD-II Trouble Code Description for P0159 Subaru O2 Sensor Circuit Slow Response What does this mean? OBD2 Code P0159 Subaru definition: This involves the rear oxygen sensor on the passenger side. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to…
Category: SUBARU
Subaru P0158 HO2S22 Circuit High Voltage
Description OBD-II Trouble Code Description for P0158 Subaru O2 Sensor Circuit High Voltage What does this mean? OBD2 Code P0158 Subaru definition: The catalytic converter is used to lower harmful emissions. To ensure proper operation, there is an O2 sensor located behind the catalyst that monitors the oxygen content of the exhaust after the cat….
Subaru P0157 O2 Sensor Circuit Low Voltage Bank 2 Sensor 2
Description OBD-II Trouble Code Description for P0157 Subaru O2 Sensor Circuit Low Voltage What does this mean? OBD2 Code P0157 Subaru definition: This code definition:a fault in the post-catalyst o2 sensor on Bank 2. First, a basic run-down of the catalyst: The Catalytic Converter is used to help control tailpipe emissions, to “clean up” the…
Subaru P0156 HO2S22 Sensor Range/Performance Condition
Description OBD-II Trouble Code Description for P0156 Subaru O2 Sensor Circuit What does this mean? OBD2 Code P0156 Subaru definition: The o2 (oxygen) sensors measure oxygen content in the exhaust. The PCM (powertrain control module) then uses this information to regulate fuel injector pulse. The o2 sensors are very important for the proper operation of…
Subaru P0155 A/F Sensor 21 Heater System Malfunction
Description OBD-II Trouble Code Description for P0155 Subaru O2 Sensor Heater Circuit What does this mean? OBD2 Code P0155 Subaru definition: This code definition:the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds…
Subaru P0154 A/F Sensor 21 Heater System Malfunction
Description OBD-II Trouble Code Description for P0154 Subaru O2 Sensor Circuit No Activity Detected What does this mean? OBD2 Code P0154 Subaru definition: The oxygen sensors are critical to the engine running properly. It basically informs the PCM (Powertrain Control Module) of oxygen content of the exhaust. The PCM then uses this information to regulate…
Subaru P0153 HO2S21 Sensor Circuit Slow Response
Description OBD-II Trouble Code Description for P0153 Subaru O2 Sensor Circuit Slow Response What does this mean? OBD2 Code P0153 Subaru definition: This involves the oxygen sensor upstream the catalytic converter on Bank 2. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as…
Subaru P0152 HO2S21 Sensor Circuit High Voltage
Description OBD-II Trouble Code Description for P0152 Subaru O2 Sensor Circuit High Voltage What does this mean? OBD2 Code P0152 Subaru definition: The o2 (oxygen) sensors basically measure oxygen content in the exhaust. The PCM (powertrain control module) then uses this information to regulate fuel injector pulse. The o2 sensors are very important to proper…
Subaru P0151 HO2S21 Sensor Circuit Low Voltage
Description OBD-II Trouble Code Description for P0151 Subaru O2 Sensor Circuit Low Voltage What does this mean? OBD2 Code P0151 Subaru definition: Essentially the same as P0136 Subaru and P0137 Subaru and P0131 Subaru, a P0151 Subaru code definition:the first oxygen sensor on Bank 2 . P0151 Subaru means the O2 oxygen sensor’s voltage remained…
Subaru P0150 Air Fuel Ratio Circuit Bank 2 Sensor 1
Description OBD-II Trouble Code Description for P0150 Subaru O2 Sensor Circuit What does this mean? OBD2 Code P0150 Subaru definition: The O2 sensor produces a voltage based on oxygen content in the exhaust. The voltage varies between .1 and .9 Volts, .1 indicating lean and .9 indicating rich. The ECM constantly monitors this voltage while…