1994 GMC Sierra "o2 sensor usually goes bad" Questions

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...O2 sensor reading lean condition I get an intermittent 'bouncing/flutttering' of the Tach at about 2400-2900rpm. It feels like a cylinder dropping out, but not completely. I have had a plug wire come ...

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...o2 sensor I tested my o2 sensor and it was bad so i replaced it but it still does the sputtering when it gets hot.. its not as bad but its still there.. any ideas as to what else it could be? ...

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Question about GMC Sierra

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...o2 sensor or fuel problem for a 1993 honda del sol d16z6) I removed o2 sensor an got no voltage even after heating tip with propane torch. will a bad o2 sensor allow car to run ok one minute an then ...

Question about GMC Sierra

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...problem like that for are o2 sensor means that your catalytic converter is starting to cause problems but that should only set a code for sensor 2 not both sensors. sorry i cant be more ...

?? Your number 1 O2 sensor is bad replace it. this is the O2 sensor attached to your headers. Could be faulty sensor or the air/fuel ratio is offset. But replace the sensor its not running effeciently

...O2 sensor after cat for Mazda Miata 2002 I've got the car lifted, and can't find the O2 sensor to replace it for a Mazda Miata 2002. I had the car coded at Auto Zone and am trying to replace it on my ...

Question about GMC Sierra

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o2's. help if you can, its a grandkid hauler. we won't take it in warm weather. thanks another item that will affect the 02 sensor is the air filter, if blocked, too much gas goes in and overheats it.

...the idle keeps going up and down and up and down. Bad O2 Sensor? Thanks. usually idle that goes up and down is cause by a bad "idle control valve" located near the throttle body. Needs to be

...o2 sensor....can't figure it out....have spent hundreds of dollars and still no solution. Did you try replacing the crank sensor.There is a service bulletin for the crank sensor causing stalling on ...

Question about GMC Sierra

3 Answers

...to just change them both at the same time. Online you can get them both for about 100$ total. Hope this helps. Thanks, Lee usually o2 codes are created by egr but the front sensor is b1s1 rear is ...

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