LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Will I pass emissions?

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Old Feb 14, 2003 | 12:59 PM
  #1  
Rocks94z28's Avatar
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From: St. Louis, Mo
Will I pass emissions?

mods are in sig,

exhaust is

1 3/4 slp shorty's
random tech highflow cat.
flowmaster 80 series muffler,

on 93 octane gas, no air fittings crap hooked up,

this was programmed through pcmforless.com for all of the mods above,

light head work also,
Old Feb 14, 2003 | 01:38 PM
  #2  
Z95m6's Avatar
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From: newton, kansas, USA
I hope you can since i will be trying a 230/236. I think since you have a cat and tuning you will pass very easy. If they have a visual inspection you will fail with no air or egr on it.
Old Feb 14, 2003 | 02:06 PM
  #3  
Rocks94z28's Avatar
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From: St. Louis, Mo
thats cool,

hotcam is 218/228 so good luck with that,

-Jesse
Old Feb 15, 2003 | 01:36 PM
  #4  
Rocks94z28's Avatar
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ttt.......
Old Feb 15, 2003 | 01:48 PM
  #5  
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You should pass just fine, my cc305 got through with lots of room to spare... (after I replaced my defective Evap Canister).
Old Feb 15, 2003 | 01:59 PM
  #6  
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From: Woodstock,Georgia
You should pass the sniffer without a problem. Technically , you could fail a visual is all emissions items arnt in place....ie your AIR system.
Old Feb 15, 2003 | 02:02 PM
  #7  
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From: Woodstown, NJ
I have !AIR, !EGR, !cat...think I will pass?
Old Feb 15, 2003 | 03:27 PM
  #8  
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From: St. Louis, MO
If you've got cats on, you should, but maybe. I've heard of LT4 hotcam cars failing.

Mine has no chance of passing.
Old Feb 15, 2003 | 03:45 PM
  #9  
gd1996ss's Avatar
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Joined: Jan 2001
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From: Latrobe, PA
I had a stock 95, well airfoil, cai, hollowed cat, and flowmaster catback, and had trouble passing. Thats with new 02 sensors, plugs, oil, clean air filter, etc... I got it to pass by having the guy put the hc sniffer in the passenger side exhaust, since most of the exhaust went to the drivers side. The car was flowing more air than stock making it run rich. Nothing else done to the computer, etc... which may of helped.

With the cat, you should be ok, I would think. Obviously a visual inspection, it wouldn't pass. But not all palces look that good, or may let ya go. I can't see why it matters if they run clean without it.
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