O2 sensor codes, need help

[junebugspade2]

Hello. I have the following mods:
JLT CAI
SCT tuner
BBK long tube headers
BBK X-pipe without cats
Flowmaster American Thunder axle-back mufflers
Car was tuned by THR (Texas Hot Rods)
Here's my problem. My CEL keeps coming on. I read the codes and it's my O2 sensors. How do I get a tune that would clear the codes? I live in Illinois and while I was in EL Paso, TX, I had some mods done. I've called THR and gave them the codes, but haven't heard from them. I keep calling, but am getting tired of the run around. I need help!!!

 

[Jenns01TA]

With your set-up:

BBK long tube headers
BBK X-pipe without cat

you will need MIL eliminators. It is a necessary evil when you have a set-up like you do. Depending on the device you used to read the OBD-II DTCs you may be able to clear them. If not, a tuner that clears codes will work.

 

[junebugspade2]

they don't make the eliminators for the 05's. I tried that.

 

[anthony05gt]

I had a guy that was getting 02sensor codes and I found that he had some work done recently and someone had 2 of the sensors crossed up. All I had to do was switch the 2 harness plugs so they were connected to the proper sensors. Just a thought.....Is that possible in your case?

 

[bigcat]

they don't make the eliminators for the 05's. I tried that.

yes they do. call brenspeed, they sell them for sure. i got mine from there when ordered my O/R H pipe.

 

[jerzeykilla]

yeah...bigcats right. i have them too, steeda makes them and so do alot of others...heck you could make your own in you really wanted.

 

[Jenns01TA]

I must have no idea what I am talking about. Hahhahahaha I better run back to the kitchen before I burn something. LOL Thanks for backing me up jerzey and bigcat.

 

[junebugspade2]

will I need my tune file from THR in order for brenspeed to tune it? I've heard how dealers are about having someone else mess with their tunes.

 

[Jenns01TA]

You have the SCT Xcalibrator device, correct? The device will clear the codes, but the CEL will continue to come on as the oxygen sensors are looping malfunctions and throwing the codes and illuminating the dash light. Hence the need for MIL eliminators. This is a mechanical device. Because you have no catalytic converters the O2 sensors are having issues and talking to the computer that regulates them. Please review this Steeda page for additional information.

http://www.steeda.com/products/steeda_mil_eliminators.php

 

[junebugspade2]

I was told there were no MIL eliminators for 05's. I guess they were wrong. Thanks for the info

 

[Jenns01TA]

No problem. We are here to help. Here is brenspeeds site:

http://order.store.yahoo.net/cgi-bi...1QNeTRfBLnGOzncYitCyCTOE2uh0wih8ZXn7WaWFBog--

 

[bigcat]

bottom of the page... http://www.brenspeed.com/mustang_2005/midpipes.html

 

[Lawhoc]

Most likely it's your long-tube headers. I had JBA LT headers and had to remove them to eliminate getting DTCs and CELs. Removing the DTCs & CELs is not suffifient; you need to eliminate the cause of getting them. Because the before-cat sensors and the after-cat sensors ar not spaced (with the long tubes) according to the car's design, the sensors are not only reporting problems (stuck lean, stuck rich, slow response sensor, etc), they are erroneously calling for mixtures and whatnot that are not desirable. The car runs less well. I have been told that JBA LT headers, for example, cannot be used without getting a dyno shop to reprogram the car's computer (a canned tune did not work for me). I did ask Dynotech (I think I got that right) whether their LTHs would work and they said yes. The picuure of that item shows a complete setup, including cats (with sensors probably spaced correctly for the setup) for about $1500. Anyhow, after I removed the LTHs, my 2006 GT runs fabulously.

 

[junebugspade2]

I had my car dyno-tuned by THR (Texas Hot Rods). The tune seems fine...I guess. It would just suck to have to pull the long tubes and get shorties. If I do that, I would also have to change the x-pipe that would fit the shorties.

 

[anthony05gt]

I've had JBA longtubes for a year and a half, before and after the dyno tune I've never had a trouble code.