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

Can OBDII be tricked into thinking an EGR and AIR pump exist?

Old Jul 17, 2003 | 09:30 PM
  #1  
bad96firechikin's Avatar
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From: Fairmount, GA
Can OBDII be tricked into thinking an EGR and AIR pump exist?

Ok, here's the deal. Georgia has begun OBD emissions testing on all '96 and later vehicles. My issue is that I live in one of the 13 metro-Atlanta counties requiring emissions testing, and I have no EGR or AIR pump. I realize that this can be programmed out of OBDII, but when the GA emissions ****'s read my ECU, it will show a EGR and AIR "not ready" rather than show that I have a functioning EGR and AIR system. This will automatically fail me. Does anyone out there know of a method to make some sort of EGR and AIR sims, so the computer sees the input it needs to see, and I'll be off scott free? Otherwise, I'm screwed. I can't go back with an EGR valve b/c of my headers. I'll be forced to park the car indefinately. Any input would be wonderful. Thanks in advance.

What I am looking for is something like a plug in sim, like an o2 sim. If a ready-made unit is not available, hopefully some instructions on making one.

Last edited by bad96firechikin; Jul 17, 2003 at 09:51 PM.
Old Jul 17, 2003 | 09:34 PM
  #2  
OneFlyn95z28's Avatar
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My 97 PCM is a firm believer they still exist
Old Jul 17, 2003 | 09:41 PM
  #3  
bad96firechikin's Avatar
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From: Fairmount, GA
Originally posted by OneFlyn95z28
My 97 PCM is a firm believer they still exist
But has is simply been gotten rid of with programming, or have you made some sort of device that really "tricks" the computer into thinking that they are there. If I could pass emissions by just having them programmed out, then I would have no problems. Like I said, with programming, it will read a "not ready" which will automatically fail me.
Old Jul 18, 2003 | 02:45 AM
  #4  
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From: Glenview,Illinois,USA
Ok heres the deal you have a 96 and OBD2 therefore what they do with a tune if the tuner knows what hes doing is sets these codes to X which will not give a not ready reading it simply will just make the emissions tester see that it is indeed working fine when acyually its not there. As long as you are having just the scan test and not the smog one. Send your pcm to Speed Inc and have them tune it out they are very popular for doing that for us IL guys
Old Jul 18, 2003 | 05:53 AM
  #5  
bad96firechikin's Avatar
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From: Fairmount, GA
Awesome....that was the break I was looking for.
Old Jul 18, 2003 | 10:15 PM
  #6  
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From: Fairmount, GA
Anyone else in GA with OBDII and no EGR or AIR passed emissions this year?
Old Jul 22, 2003 | 06:54 AM
  #7  
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From: The Jungle
Originally posted by unTAmedLS1
Ok heres the deal you have a 96 and OBD2 therefore what they do with a tune if the tuner knows what hes doing is sets these codes to X which will not give a not ready reading it simply will just make the emissions tester see that it is indeed working fine when acyually its not there. As long as you are having just the scan test and not the smog one. Send your pcm to Speed Inc and have them tune it out they are very popular for doing that for us IL guys
I plan on sending them an email about this service. Is there anyone in particular it needs to go to? Thanks.
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