2003 Cadillac CTS "o2 sensor" Questions

o2 sensor on the passenger side before the cat but i still have the same problem You do realize you have 4 o2 sensors on the vehicle? Obtaining a reading from its computer (failure code) will not tell

...O2 sensor heating elements . I would change that or test the relay , videos on you tube on testing relays . MAIN Relay -- LO SPEED Relay, HI SPEED Relay, S/P FAN Relay, PRE O2 Fuse, IGN-1 Fuse, ECM ...

O2 Sensor? Did you get a code? And after you changed the sensor did you clear the code? If you did change the sensor because of the code I have to give you some Info. Lots of people pull the code from

...o2 Sensor you're asking about (Bank 2 Sensor 1) is before the Catalytic. The o2 Sensor after the Catalytic is Bank 2 Sensor 2. Bank 1 Sensor 1 is on the passenger side as well as Bank 1 Sensor 2. I ...

O2 sensors that are new and still the PCM indicates a faulty sensor..? did u have computer reset after changing them what code getting.many things will set off faulty oxygen sensor code.you could have

O2 sensor heater fuse to the PCM connector  were the heater is grounded. The resistance value should be 35ohms. If the value is too high, the PCM will set the P0141 code. I would suspect you have

...O2 sensor boss on the exhaust pipe which allows outside air into the pipe at the O2 sensor and skews the post catalyst O2 sensor reading. The hole may or may not be readily visible, depending on its ...

O2 sensor problem, and I would start by replacing it. When the engine first starts and it is relatively cold, it goes into open loop mode and does not use O2 sensor readings to control fuel flow (uses

...pertain to the heated o2 sensor// bank 2 -sensor 2 -their is a malfunction with the heated sensor behind the cat converter either wiring problem or bad sensor--check wiring and or sensor for ...

what can cause high voltage to my o2 senor or cause my o2 sensor to read high voltage? The only thing l can think of is a faulty sensor or check feed wire to make sure it`s not earthing out....