i have a 2000 z28 and i just performed the "free mod" to the egr valve that goes through the t/b o hacked it of and now my car wont idle and when i try to give it gas it just dies ...what should i do now that i cant put it the way it was?

 

Did you block off the opening or did you just hack the tube off and left it?

 

i hacked the part that goes inside the t/b then bolted the top back on

 

So now you have a big hole in the top of the throttle body right? This will allow unmetered air into the engine, you need to block it off if there is a hole.

 

no.no.no everything is the same i just cut the thats is the t/b so it would flow a lil better but as far as a big hole there...no its all the same except that tube that goes down the t/b ists now gone

 

but yea i see what your sayin iut it should be sealed since i dont really do anything to the part that seals it ...it all went back the same way it come out....lol.....im just kinda wondering if this was worth doin for the lil bit of flow that i will get ...but thanks for helpin out

 

Are you talking about cutting the lower portion of the EGR pipe that fits inside the intake? If so it's not sealing properly and you're getting unmetered air which will also throw a code. Loosen it where it connects to the intake and try bending the pipe a little until it seals, and make sure the gasket is set correctly.

 

yea the one thats on the intake but ill try that and i just looked at the website that has the free mods and it says to replace the o-ring . ill try that in the morning to see if it helps if not ill just buy a new one and put it the way it was...and also it hasent threw a code yet and i drove it for 30 minutes and once i stop it dont wanna go again it choles out but still no codes

 

You can buy a block off plates.

 

if i cant get i lined out tomorro thats what ill do i just hope i can get it...thanks for all the help but im sure ill get in eventually ...thanks again

 

Some codes don't set unless it sees a fault for a few ignition cycles, just mentioned it in case it does so you wouldn't be surprised. When a friend of mine did his he pinched the seal and threw one - bending the pipe a little and a good seal made it go away.

 

Make sure that the quad-ring is still there. Many have had it come out of position when reinstalling the tube and then it gets sucked into and thru the motor (no biggie it won't hurt the motor).

 

^ yeah.. Or be sure you didn't cut too much off the piping. that will create a nasty vacuum leak.

 

yea i think thats what ive done ..i cut it as close as i could and it does have a bad vqacume leak...but how can i get that fixed?

 

^ You could JB Weld the spots that were cut too much.. that stuff is great.. just get the liquid so it won't come loose.. rough sand it and clean it to give it something to 'grip' to..