Questions & Answers for: changing o2 sensor

o2 sensor reads bad i changed the o2 sensor and the check engine light keeps coming back on so i asked some people they say to check the heated wire which is the heated wire here's a link that may ...

...changing 02 sensor on my 2000 toyota tundra code read o2 sensor did u change the right o2 sensor there is 2 sensors on bank1 and 2 on bank2.....upstream and down stream.....i had the same prob i ...

...o2 sensor...it throws the code for the upper o2 sensor also. Could that be causing the problem?? First thing is; When you changed the fuel pump, did you compare the 2 to see if they were identicle?, ...

...O2 sensor, I think I would change it. The multiple misfires could be because of improper fuel/air mixture caused by a bad sensor. Disconnect the negative(-) battery terminal then change the sensor. ...

...the o2 senser and the o2 senser light does not go out. this is not a check engine light. You're lucky you have an O2 sensor light, which most cars do not have. --- Did you change both O2

o2 sensor and put new plugs and wires on. The truck is hesitating and seems to lose power going up hills and is now smoking. It is a 2004 chevy avalanche. This could be due to the wrong O2 sensor, Bad

...O2 Sensor 2 is stuck at 99.2%. The other values change with the engine speed except that one. Is this normal? I would say no its not normal may need to change O2 sensor or the cat. showing the ...

o2 sensor heater circuit. while many times replacement of the o2 sensor can solve this problem you possibly have a short or open in your o2 sensor heater circuit. Also was the proper o2 sensor changed

...O2 Sensor malfunction code check fuse for o2 sensor heater and ground.If the heater is not working then it will take more time on cold start to adjust injection. check connector o2 if corroded ...

...changing o2 sensor Should be between .100 and .900 volt and very quick changing. if defective ecu give him a fix prevalue.His it a one,two or four wire o2 sensor if it is four it is a HTO2 (heated o2 ...