I just installed RRM headers and everything seemed to be fine until I start my car the next morning and my CEL comes on. I hook up my computer to my car and it shoots out a code of p0135. I googled it and it says its my bank 1 sensor 1 which is my front o2 sensor located in my headers. I am confused on what I should do. Should I go replace the o2 sensor or what? Any help would be great. The problem is I am not getting a check engine light for my second o2 sensor on my cat. and I do have the CEL eliminator.I put it on the cat and it seems to b working. Its the first o2 sensor that is giving me the problem which is located on the headers.

 

did you try to unscrew the 02 sensor without unplugging it by chance? When I installed my obx, I was stupid enough to do that and it twisted the wires up and damaged the heater element in the 02 sensor and caused the same cel. I had to replace the 02 sensor.

 

I have the rrm header and dc catback on my 06 ES, so I had to put the cel eliminator on too. I needed to get the check engine light off for inspection but it came back on after 300 miles.
Rrm told me that the eliminator only works on 90% of cars but they don't know why.

 

That the only thing that I could see being a problem. Maybe my o2 sensor did actually break some how. So I guess ill check it to see if its broken or not and let you guys know. THanks

 

yea i got the rrm headers and the cell elimnator and my light still comes on it pisses me off and checked it its not broken or anything could i do something or what? and when i go to get it inspected if i reset it and go there will they know that the check engine light will come back on ?

 

Im not 100% but I drove my car for about 100miles before inspection and light didn't come back on so I passed....but def. annoying.

 

Yes they can know. The ecu will store 'pending' codes meaning that its a potential problem but not enough to trip the CEL yet. You can view pending trouble codes with a scanner.

 

How would i reset my ECU?

 

Do you think if I got a piggyback that I would be able to tune my car to make that check engine light go off?

 

No, get a CEL eliminator, as sold by RRM.

 

Done and done.

 

i got one when i bought my header from RRM.. they work for awhile then they dont... it seems if i keep over 3000 rpms for an extended period of time... which of course freeway driving im usually around there... then it will come back on (cel) so idk for me it didnt really work... its annoying but ive learned to deal with it. maybe the cel eleminator will work for someone else though.. idk

 

Seemed to work fine for me. But I also have both cats removed. I assume that because of the second cat, there is more backpressure over by that second 02 sensor forcing more of the emissions up into the little CEL eliminator and it basically becomes useless. You kinda get what Im saying? I dont really know how else to explain it but it seems to make sense. Seems like anyone that has that second cat seems to have a problem with the CEL eliminator. Ive only had one 02 cel and it was for the heating element in the 02 sensor cause I twisted the wires when I took the sensor out of the stock header and it must have broke something. Bought a new sensor and it went away.

 

You're much better off making a CEL eliminator yourself with spark plug non-foulers. I did that when I had my RRM header ages ago and never once got a CEL. I still have them installed on my rear O2 sensor and to this day have never gotten a CEL for anything cat or O2 related. Come to think of it, I haven't had a CEL in over 3 years that wasn't self induced (Evo ECU swap). Those don't count.

 

Lol. agreed on the spark plug foulers. If I would have known that at the time I would have saved myself quite a bit of money.