I want to remove the emission control systems off my '89 350Tpi Iroc. I already have how to reroute the belt to get rid of the smog pump, and I realize I will need new headers to get rid of the air injectors. But I think my big problem is the EGR, how can I keep it closed, remove all the ugly hosing, and still keep my computer thinking it is working? Any help would be great.
(Ehelmsin@hotmail.com)

 

I don't think there is a way. If you unplug the solenoid and cap off the vacumn lines the computer will set a code 32. You can get an aftermarket chip from someone like performance research to eliminate the EGR option. A lot of people actually claim that if you dissconnect the EGR you will loose some horespower but I can't remember all the reasons behind it. I've removed my smog pump and plugged my Edlebrock header air tubes with a simple water pipe cap that screwed right onto the main air injection tube. Not pretty but it works. If you still have stock exhaust manifolds you can plug the injection holes using threaded plugs.

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1988 TA 300+hp 350 w/ TBI and Holley TB unit,
WC T-5, 3.42 gears w/ Auburn posi. MSD 6A, edelbrock TES headers, dynomax 3" cat and cat-back system, ACCEL coil, polyurethane bushings all around, aluminum driveshaft, Mr. Gasket open air cleaner.

1993 S-10 w/ 4.3L V6 TBI, slightly bigger cam, Mild polish job and 3 angle valve job on heads, Edlebrock TES headers, Dynomax cat back, MSD 6A, ADS chip
(bought from my dad)

2000 GMC Sierra Regular Cab Stepside
285hp 5.3L w/ 3.42 gears and locking diff. (sold to my dad..no!!)