AIV/PRVR/EGR removal
05-28-2005, 08:26 AM
#1
Loves The Asian Chicks
Thread Starter
Join Date: Oct 2004
Location: TN
Posts: 263
AIV/PRVR/EGR removal
since my plenum is out, im thinking of considering these removals. i found a write-up for it already, but im worried about any adverse effects that could happen. im wanting to do this mainly for the engine clean up (damn hoses everywhere!) and easier time to take the plenum off if i have to do it again
05-28-2005, 02:19 PM
#2
Aqua Teen Hunger Force Fan
Join Date: Sep 2004
Location: Smyrna, TN
Posts: 535
Definitely remove the AIVs if you get an aftermarket ECU. The EGR I would be hesitant to remove for fear of not passing emissions. The PRVR, I have read, is supposed to prevent vapor lock. So remove at your own risk. People have done it with no problems.
05-30-2005, 09:39 PM
#3
Registered User
Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
I have yet to read about a real benefit of removing the PRVR system.
Like the dude said,....remove the AIV and leave the EGR. In order to remove the AIV, you really need to replace your cats or remove them all together.
Like the dude said,....remove the AIV and leave the EGR. In order to remove the AIV, you really need to replace your cats or remove them all together.
05-31-2005, 11:11 AM
#5
Loves The Asian Chicks
Thread Starter
Join Date: Oct 2004
Location: TN
Posts: 263
Originally Posted by 91zxtt
I have yet to read about a real benefit of removing the PRVR system.
Like the dude said,....remove the AIV and leave the EGR. In order to remove the AIV, you really need to replace your cats or remove them all together.
Like the dude said,....remove the AIV and leave the EGR. In order to remove the AIV, you really need to replace your cats or remove them all together.
05-31-2005, 03:20 PM
#6
Aqua Teen Hunger Force Fan
Join Date: Sep 2004
Location: Smyrna, TN
Posts: 535
Originally Posted by Seraphic
Do you not need a ecu upgrade in order to remove the AIVs ?
Last edited by ZXDude90; 05-31-2005 at 03:22 PM.
06-01-2005, 08:07 PM
#7
Registered User
Join Date: Nov 2003
Location: Gerber, CA
Posts: 3,672
The reason I say that you should upgrade your cats is because the pre '93 cats need the AIV in order to operate correctly. The older cats need to have air injected into to them in order to assist in burning the unburned fuel. The newer cats do not require the AIV (aka smog pump). ZXdude, have you smogged your car since you removed your AIV's? I wonder how much of a difference it really makes and if you'll be able to pass smog.
06-02-2005, 06:05 AM
#8
Aqua Teen Hunger Force Fan
Join Date: Sep 2004
Location: Smyrna, TN
Posts: 535
Originally Posted by 91zxtt
The reason I say that you should upgrade your cats is because the pre '93 cats need the AIV in order to operate correctly. The older cats need to have air injected into to them in order to assist in burning the unburned fuel. The newer cats do not require the AIV (aka smog pump). ZXdude, have you smogged your car since you removed your AIV's? I wonder how much of a difference it really makes and if you'll be able to pass smog.
you shouldn't have to worry about getting the 93+ cats. You can either do that or leave the units under the fenderwells, put a golf tee in the vacuum lines that go up to the solenoid and just remove the AIV stuff in the engine bay.
Thread
Thread Starter
Forum
Replies
Last Post
Bookmarks
