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

Emissions Test Failed

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Old May 21, 2008 | 02:34 PM
  #11  
tbirdscwd's Avatar
tbirdscwd
5th Gear Member
 
Joined: Sep 2006
Posts: 4,039
From: CA
Default RE: Emissions Test Failed

ORIGINAL: 40thGTKB

wait...

so your saying that if I have my o2 sensors turned off (with my tune), I will not pass my OBII tests? Even if the light works? and even if I also have MIL Eliminators? (redundant but got them before the tune)
If you have MIL eliminators then just turn them back on in your tune and youll have no problems. Its possible to fail the OBDII readiness test depending on how the rear 02s are disabled in your tune.
Old May 22, 2008 | 07:24 PM
  #12  
Blacksslumina's Avatar
Blacksslumina
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2nd Gear Member
 
Joined: Feb 2007
Posts: 174
From:
Default RE: Emissions Test Failed

Sorry i didn't check the forum yesterday, but let me make sure i understand, even with hi flow cats i still need MIL Eliminators?
Old May 22, 2008 | 07:41 PM
  #13  
Fizzics Boy's Avatar
Fizzics Boy
3rd Gear Member
 
Joined: Sep 2006
Posts: 735
From: New Jersey
Default RE: Emissions Test Failed

ORIGINAL: Blacksslumina

Sorry i didn't check the forum yesterday, but let me make sure i understand, even with hi flow cats i still need MIL Eliminators?
Not always. When I have my high flow cats on for inspection I did not need them.
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