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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: JBerryhill on March 23, 2009, 07:54:37 pm
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Well it's time for another truck project, I want to remove all the smog stuff on my 87........I know when I removed it from my 90 Mustang GT I had to plug some holes in the heads, are these the same or do the tubes just come out of the manifolds? will this mess with my EGR or do I remove it also? once again thanks for any help.
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If you have TBI, the only thing you can get rid of is the A.I.R. Pump and lines and maybe the egr system.
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i did that on mine and i took off the pump and lines....then just put plugs in the exhuast manifolds where the lines went...it didnt affect how it runs
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Just behind the air pump there is a valve of some sorts that has a 2 wire electrical plug in, do I just leave it unplugged?
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IF you leave it unplugged, your check engine light will come on. I removed the pumps on our church bus (C60 with a 350) and the check engine light is one. I have to find out which resistor you can out in it to make the light go out, I just havent done so. When I figure it out, I will let you know. The light doesnt hurt anything, and simply removing the bulb from the dash will fix that. I think the emmissions junk is the only thing that will make it come on anyway, but I wont swear by it.
Gold84GMC, what did you use to plug the holes with. The one I did had the flare nuts on it, and I retapped the holes to put different pipe thread type plugs in it because I couldnt find flare nut thread type plugs that size.