swapped X pipe for an H pipe, now having bucking issues

[shelbygt]

Yesterday I removed the BBK X pipe because I couldn't take the rattling metal sound anymore. Having Flowmasters, so I am told, makes it worse.

I took out the old 02 sensors and replaced them into the new H pipe. So now when cruising at 1800-2200 RPM the car bucks slightly but quite noticeably. When I put the 02 sensors back in, I applied a bit of anti seize compound on the threads of the sensors. Is it possible the sensors got some compound on them? If so, are they still useable? Or is it possible the car was tuned with an X pipe and now I have changed the specs?

The car sounds MUCH better now!! But I will miss the sound of open throttle with the X....just not the tin can rattle :rolling:

Thanks for any advice,
Dave

 

[PSUCOBRA96]

make sure all your o2 sensors are still connected correctly, take them out and put them back in, could you have knocked any of the headers if you have them? not sure what setup you are running

 

[FunkyBoss]

It's possible one of the O2's is malfunctioning, if so you should have a CEL in a couple days. Are you sure there are no exhaust leaks?

 

[Cookieman00x]

Im going to take a guess and say exhaust leak.. any CEL's?

 

[006]

Did you reset your ECU?

If you want any immediate changes/fixes to be reflect with your ECU, you do have to reset/reboot the damn thing.

Unplug the battery for a while, plug it back in and you should be set.

 

[shelbygt]

Well I pulled the CEL bulb a few weeks back, since I had planned on replacing the X pipe with the H and add MIL eliminators. So I have to put the bulb back in and install the MIL eliminators and run the OBD2 scanner and see what I get. I never had to deal with O2 sensors and I thought I was missing something obvious.
Thanks again everyone!
Dave

 

[My94GT]

put the bulb back in and get the codes cleared. also o2 sensors are cheap it may not hurt to pick up a set

 

[jlauth]

put the bulb back in and get the codes cleared. also o2 sensors are cheap it may not hurt to pick up a set

Cheep? About $90 a piece from the Ford dealer, and I believe $70 at auto parts stores.

What do you know that I don't? Where can get some for that cheep, b/c I want some?

 

[FunkyBoss]

Cheap is a relative term ;-)!

 

[Cookieman00x]

relative to being a baller..

 

[Wraith_2006]

yeah I just had to price out O2 sensors and they said 62.49