Review on 🔌 23139 NTK Oxygen Sensor by Albert Wallin

Perfect for OEM. Fixed check engine light. In fact, the cable is about 4-6 inches longer, which allows you to place and secure it even better than the original part. Using the code received, make a note of the correct part to be replaced. For a 02/06 Jeep Liberty you have 4 oxygen sensors, one before and after each catalytic converter on both catalytic converters, labeled bank 1 for the driver's side and bank 2 for the side. From the passenger side. There is another post combustion catalyst that goes to the exhaust (Parts not mentioning the OEM are NTK for direct fit. In my case here are the part numbers and placement for a Jeep Liberty MY 02/06 as per the P0031 trouble codes read in my ODB II.To fix this you need the right side as the sensor wire location and length are different.In this case P0031 was connected to "HOS2 Heater Control Circuit Low Sensor 1" In this case B1 means S1 Block 1 Sensor 1z With this information I was able to buy the part but I needed to know which was bank 1 or bank 2 and low or high I hope this information will help you figure out which one you need to replace ROW 1 = Driver Side/ LEFT SIDE # PLATZ 2139 B1S1 (before catalytic converter driver's side) 23141 B1S2 (after catalytic converter driver's side) BANK 2 = passenger side/RIGHT SIDE # PLATZ 23138 B2S1 (before catalytic converter passenger side) 23142 B2S2 (after catalytic converter passenger r side) passenger)