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

longtubes and SES light

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Old Feb 5, 2004 | 07:26 PM
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LT1Mandel
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From: College Station, TX
Post longtubes and SES light
I just got the SES light cruising on the highway after my longtube install, and I'm assuming it is the EGR.

Is there a permanent solution to this if I want to stay emissions legal? (I'm running dual cats)
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Old Feb 5, 2004 | 08:25 PM
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Spinner
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From: Fort Benning, GA
Yep. Have the EGR deleted out of the PCM for good
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Old Feb 5, 2004 | 10:13 PM
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LT1Mandel
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I will have no problems with an emissions inspection if I completely delete EGR from the computer?
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Old Feb 5, 2004 | 11:20 PM
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Red96Lt1
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From: Birmingham, Al
If you are getting a light, then apparently you have done something to make the EGR inoperable, so you will fail anyway. So you might as well get it programed out.
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Old Feb 5, 2004 | 11:48 PM
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SlickBlack Z
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From: NJ, USA
Did you scan the code yet? If its P0400...I can help you. I can give you instructions on how to fabricate the infamous "EGR simulator". Let me know.
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Old Feb 5, 2004 | 11:49 PM
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Antz97ZNJ
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From: Browns Mills, New Jersey
Yea my egr was on after install also, just brought it back to chevy and they took it off, no problem w/ inspection
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