Replace the O2 Sensor ?
#1
Replace the O2 Sensor ?
I've been thinking, should I replace the front and rear O2 sensor ?
Cuz I've read some post that, these sensors can go bad but still not triggering a CEL until its completely dead, just like ignition coils.
and Im thinking I probably get can a few more mpg if I replace them, I know it will not offset the cost that easily (a new sensor, front, cost 240 something already), but ......... ahh I dont know.
Cuz I've read some post that, these sensors can go bad but still not triggering a CEL until its completely dead, just like ignition coils.
and Im thinking I probably get can a few more mpg if I replace them, I know it will not offset the cost that easily (a new sensor, front, cost 240 something already), but ......... ahh I dont know.
#6
http://www.autozone.com/R,APP232934/...ductDetail.htm
I wonder will this work, it has 2 kinds of rear sensor, one (the above) saids Universal, and its 71 bux.
the other one O.E type, cost more than double, its even cheaper if I buy from Mazda.
so I wonder if the Universal one works with our car.
I wonder will this work, it has 2 kinds of rear sensor, one (the above) saids Universal, and its 71 bux.
the other one O.E type, cost more than double, its even cheaper if I buy from Mazda.
so I wonder if the Universal one works with our car.
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
#10
Extraordinary Engineering
#14
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wow, major thread bump ![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
BTW, the rear O2 sensor is nothing mroe than a cat monitor. Its only job is to throw a CEL if your cat goes bad, so there would be no reason to replace it unless you have that CEL with a known good cat.
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
BTW, the rear O2 sensor is nothing mroe than a cat monitor. Its only job is to throw a CEL if your cat goes bad, so there would be no reason to replace it unless you have that CEL with a known good cat.
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#18
Will an Ebay 4 wire O2 sensor works as ot suppose to be? ![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
http://cgi.ebay.com/ebaymotors/OXYGE...Q5fAccessories
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
http://cgi.ebay.com/ebaymotors/OXYGE...Q5fAccessories
Last edited by csl; 08-22-2009 at 06:43 PM. Reason: change link
#19
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Will an Ebay 4 wire O2 sensor works as ot suppose to be? ![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
http://cgi.ebay.com/ebaymotors/OXYGE...Q5fAccessories
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
http://cgi.ebay.com/ebaymotors/OXYGE...Q5fAccessories
If you are in the USA phone and ask if the heater element has a resistance of between 2.16 and 2.9ohms for the front O2 sensor and the rear O2 sensor between 14.1 and 18.9ohms. These parameters are monitored in the RX8 and if not within spec will throw a CEL.
Last edited by O'Renesis; 08-22-2009 at 07:37 PM.
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