4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

question about SCT X3

Thread Tools
 
Search this Thread
 
Old 08-09-2010, 11:50 AM
  #1  
almand01
1st Gear Member
Thread Starter
 
almand01's Avatar
 
Join Date: Mar 2009
Location: Statesboro, Georgia
Posts: 50
Default question about SCT X3

im about to order my O/R h hipe and the SCT X3, but i was reading through the reviews for the chip on AM and noticed that someone said that you have to take the tune off a week before you get your emissions tested or else it will fail??? the main reason i am getting the chip is so i can turn my o2 sensors off for my midpipe. so will i still not be able to pass emissions without cats?
almand01 is offline  
Old 08-09-2010, 12:00 PM
  #2  
dwtjr3
5th Gear Member
 
dwtjr3's Avatar
 
Join Date: Feb 2010
Location: PA
Posts: 2,758
Default

yeah you will still fail i have the same tuner with O/R H-pipe if your running no cats get the MIL eliminators then you will pass emissions without having cats
dwtjr3 is offline  
Old 08-09-2010, 12:29 PM
  #3  
almand01
1st Gear Member
Thread Starter
 
almand01's Avatar
 
Join Date: Mar 2009
Location: Statesboro, Georgia
Posts: 50
Default

is that just with that tuner or with all of them? my car is registered at my parents address but i am in school and live 3 hours away, so i can get exempt from emissions if i have to. but my check engine light will just be on. i have also heard that the MIL eliminators dont always work...
almand01 is offline  
Old 08-09-2010, 04:15 PM
  #4  
outlaw351
 
outlaw351's Avatar
 
Join Date: Aug 2009
Location: ga
Posts: 8
Default

i used the sct tuner with o/r x-pipe and turned off the rear o2's and passed no problem. i have a brand new SCT livewire the expensive tuner ill sell ya, i dont need it its still in the box. ill let you have it for 400 bucks shipped youd pay that for a xcal3. there normally like $600+ but ill help ya out if you want.
outlaw351 is offline  
Old 08-09-2010, 04:51 PM
  #5  
dwtjr3
5th Gear Member
 
dwtjr3's Avatar
 
Join Date: Feb 2010
Location: PA
Posts: 2,758
Default

yeah you can turn the rears off and they will pass but i dont have any o2's not even the front ones so mine wouldnt pass
dwtjr3 is offline  
Old 08-09-2010, 08:44 PM
  #6  
outlaw351
 
outlaw351's Avatar
 
Join Date: Aug 2009
Location: ga
Posts: 8
Default

Originally Posted by dwtjr3
yeah you can turn the rears off and they will pass but i dont have any o2's not even the front ones so mine wouldnt pass
you dont have any upstream o2's ???? how is that?
outlaw351 is offline  
Old 08-10-2010, 06:14 AM
  #7  
dwtjr3
5th Gear Member
 
dwtjr3's Avatar
 
Join Date: Feb 2010
Location: PA
Posts: 2,758
Default

i just put plugs in all 4 the engine runs a little rich bt its nt too bad at all
dwtjr3 is offline  
Old 08-10-2010, 08:14 AM
  #8  
outlaw351
 
outlaw351's Avatar
 
Join Date: Aug 2009
Location: ga
Posts: 8
Default

well your losing power without your upstreams dude, the upstreams basicly controll your fuel/air ratio. i bet if you dynoed it you would see youve lost a good bit of power.
outlaw351 is offline  
Old 08-10-2010, 11:25 AM
  #9  
almand01
1st Gear Member
Thread Starter
 
almand01's Avatar
 
Join Date: Mar 2009
Location: Statesboro, Georgia
Posts: 50
Default

oh ok well im gonna hold off on getting the tuner for now but i will in a little bit when i have more money to throw around. but if i just get my mid pipe installed with no chip to turn the 02 sensors off, will it make my car run differently? or is it just the check engine light?
almand01 is offline  
Old 08-10-2010, 03:10 PM
  #10  
outlaw351
 
outlaw351's Avatar
 
Join Date: Aug 2009
Location: ga
Posts: 8
Default

well the light will come on and if im not mistaken the computer goes into safe mode which governs the power done a bit.
outlaw351 is offline  


Quick Reply: question about SCT X3



All times are GMT -5. The time now is 03:42 AM.