My SES light had been on for awhile, and i got the code checked, and it was one of my front o2 sensors. So i had the light on for awhile because the funds werent there for a new one.

Then, the other day i was checking fuses, and i happened to see my o2 sensor fuse was blown. I replaced it, and reset the ecu, and the SES light has not come back for 2.5 days now.

Does that mean the light was on because of the fuse? and if so, why did the fuse blow? If not, why did the fuse blow?

 

nothing? no one?

 

hello...anyone there? anyone at all?

 

hey -- doesn't mean the O2 is fixed...give it some more time.
I've constantly been resetting my CEL lately for a bad rear O2, but my fuel economy isn't indicative of an O2 issue.

Basically, here's my rule of thumb on ANY CEL:

1) find code
2) reset
3) wait and see if code reappears

If it DOES reappear, I replace the part/sensor
If it DOESN'T reappear, then I assume that it was a one-time screw up.

For example, if you go on a high-speed run, I ALWAYS get a CEL for an O2 sensor...but, I reset it and it doesn't come back on...

BUT, I'm happy that there's an O2 fuse!
I'll check that tomorrow (when I get my car back)

FLO_BOY
(aka TheRealG)

 

been 3 days now and no CEL. hopefully its just the fuse. anyone else with experience on this subject?

 

yes i do when my rear went bad i reset the ecu and it took 2 full tanks of gas before it came back. but my car was in $hit mode and it sucked gas like a biatch so replace and have fun if you really want to you can come here again for another install!! yay

 

why dont you come here for once? and its not my rear o2 sensor, its one in my front bank. So i figure ill let the ecu set off another cel before i got to replace it.

 

i know this man whats up, im saying replace the ****** so u dont have to later anyway. either way your gonna have to pay for it sometime. yea ill come your way if you tell me you have a decent space to work and i feel like lifting my jack unless you have a GOOD one?

 

A blown fuse may have caused the CEL to go off.
The fuse may have been blown due to a surge or a short on one of the wires of the rear O2. The rear O2 sensor only checks if the main catalyst is working or not. I doesn't affect drivability. If the code doesn't reappear, LEAVE IT. If it does, check for a short if the fuse pops again. If it isn't the fuse then fork over the $150 for the part.

 

150 for an o2 sensor??? and you guys keep talking about the rear o2 sensor, the code wasnt for a rear o2 sensor.

and joosdawg, i'm not shelling out 60-80 bucks for something if i dont have to right now. we're not all made of money big pimpin. I've got a big driveway for some work to get done, whatever work you need. No lift for me, the cheap one i bought no longer works, so i just use my friends here.

 

well mr D obviously chunger didnt read all the posts or he would relize its not the rear but thats besides the point. big pimpin is the way to go man $69 free shipping or somthing at oxygensensors.com i think, thats where i got mine i just got the walker brand and it works awsome. as soon as you get a pimp paycheck then order that biznata and call me up we will do the install...if you have no garage to work in its too cold for that stuff

 

we've got a garage, not huge, but big enough to get the job done. 2 car. And the CEL hasnt came back yet, so im thinking it was just the fuse, even though i have no idea why itd blow.

 

me either