LT1 No EGR!!
Senior Member
Joined: Jul 2001
Posts: 649
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From: San Rafael, CA
Car: 1988 Trans Am GTA
Engine: 5.7L TPI (L98)
Transmission: 700RJunk
It depends. You might be able to pass a sniffer without the EGR valve but it will be difficult. You will need to make the motor run a lot cooler to keep NOx emissions under control, which conversely might make your HC and CO emissions go up, so.........
actually passing a sniffer with no egr is not really a problem if your car is well tuned, done it many times when I lived back east, but you'll never pass a visual inspection if your state requires one.
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HoosierinWA
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Oct 7, 2015 10:15 AM






