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

Anyone pass emissions with air or egr removed

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Old Jul 18, 2004 | 08:41 PM
  #1  
polcat1p's Avatar
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From: Connecticut
Anyone pass emissions with air or egr removed

Just wondering. I want to clean up the engine bay
Chad
Old Jul 19, 2004 | 06:20 AM
  #2  
97FormulaWS-6's Avatar
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Re: Anyone pass emissions with air or egr removed

Depends on which emissions testing you're worried about?

The rollers - Unknown if anyone has passed this one
The Visual - Easy, find a shop that doesn't know any better, this used to be my route

The NEW Plug-In - Unknown, but I'm going to be one of the first to try to trick this system. I'm building some basic circuitry such that I can program my PCM back to thinking all the emissions equipment is there and trick the PCM.
Old Jul 19, 2004 | 09:27 AM
  #3  
Hyperspeed97z28's Avatar
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From: Upstate, NY (Albany area)
Re: Anyone pass emissions with air or egr removed

The NY test should be easy, They plug into OBD2 and if there is no trouble codes, you pass...

So us guys that have this stuff programmed out, the ecm doesnt know its supposed to be there and with no trouble codes, you should pass !!

This is what my friend at a shop told me, They said the new system will be out soon. He said if that didnt work which he was almost positive it would, that we'd find another way
Old Jul 19, 2004 | 10:16 AM
  #4  
RE AND CHERYL's Avatar
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Re: Anyone pass emissions with air or egr removed

Originally Posted by Hyperspeed97z28

So us guys that have this stuff programmed out, the ecm doesnt know its supposed to be there and with no trouble codes, you should pass !!
Wrong...For the plug in test their computer runs specific test on certian systems based on data on hand about your cars emissions system. If they have been programed out you will fail because it will seem as if they either aren't there or are not responding properly. Either way you will fail, even if the SES light isn't on.
Old Jul 19, 2004 | 11:29 AM
  #5  
donot_4get's Avatar
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From: Delaware
Re: Anyone pass emissions with air or egr removed

he doesn't have an OBD2...
I passed emissions with out egr and air because none one looked under my hood. I imagine it's different from lpace to place.

leo

Last edited by donot_4get; Jul 19, 2004 at 01:07 PM.
Old Jul 19, 2004 | 11:37 AM
  #6  
97FormulaWS-6's Avatar
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From: SLC, UT
Re: Anyone pass emissions with air or egr removed

Originally Posted by RE AND CHERYL
Wrong...For the plug in test their computer runs specific test on certian systems based on data on hand about your cars emissions system. If they have been programed out you will fail because it will seem as if they either aren't there or are not responding properly. Either way you will fail, even if the SES light isn't on.
Exactly....

This I know because I know 3 different people with their inspection license... I will have figured this inspection thing out this fall and will know how to bypass the "issues" with having emissions equipment removed.
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