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If you are replacing the sensors on bank two (4-6) you will want to remove the air intake tube as well (yellow arrow). Several on the forum here have found the bank 1, sensor 1 AFR sensor is usually the culprit. This photo shows the exhaust removed, which is not required for replacement. The code will trigger when the O2 sensor signal sent to the PCM remains at or near a set. ” It indicates that the voltage signal from the downstream oxygen sensor has remained below a specific threshold for an extended period. sigalert traffic map How To Locate Sensor 1 And Sensor 2. It's still under warranty (~March 2020 in service with 13k miles on the ticker) BUT, the dealership can't get us in for a month. 2. I understand most viewers do not have a jackstand or a car lift to get under the car to remove the Bank 2 Sensor 2 Oxygen Sensor (P0156) get under the car to remove the Bank 2 Sensor 2 Oxygen. Post by azdbacker » Wed Dec 16, 2020 5:19 pm Disconnect the Heated Oxygen Sensor (HO2S) electrical connector (problem with Band 2 Sensor 2). corey seager reference Replacing the oxygen (O2S) sensor on your Volkswagen Jetta is a simple process. Skip to main content. A V6 and V8 engine has two banks. My assumption here is it's time to replace the bad sensor. depo lighting 1 Warm-up Catalyst (Front Catalyst) 5 Heated Oxygen Sensor 2 (Bank 1, Sensor 2) 2 A/F Sensor (Bank 1, Sensor 1) 6 Heated Oxygen Sensor 3 (Bank 1, Sensor 3) 3 Fuel Injector 7 Under Floor Catalyst (Rear Catalyst) (HC Absorptive 3-Way Catalyst) 4 Intake Manifold Runner Valve NOTE: Issue of this Technical Service Bulletin is to ensure that proper. ….

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