So I deleted egr, a couple vacuum lines, and the air injection on my 89 3vze and I got a bad idle surge now, never had it before, I have no engine lights or codes, I can’t run it for very long at the moment because there’s no coolant in it, I just started it up to make sure it would run and that’s when I found the idle surge, I’ll link a YouTube video of it happening

At the start of the video when I start it up there’s also a small backfire

 

Typical symptoms of the idle being to high while the IDL signal from the tps is telling the ECU the throttle is closed..

Check for vacuum leaks and adjust the idle control screw.

PS pretty sure the VZE has the same iacv as the 22re, you need liquid in the coolant system. As well the ECT and coldstart timer rely on this liquid.

 

So the surge goes away after a couple minutes but it runs really rough, I’ve tried adjusting my idle but It doesn’t seem to help any, I deleted this thing idk what it is or does but it gets bolted to the front of the intake, one bolt holds it on, it has vacuum lines going to the fuel pressure regulator, I know I need the regulator but do I need the other thing, if anyone has deleted egr would you mind sending some pictures of your vacuum lines or give your thoughts, I’m trying to get her to run better I miss driving it

 

Seriously?

Why don't you take a picture of "the thing." Maybe someone can help you.

OR, put it all back together. That will probably solve your problem.

 

So I got er figured out, I needed to put the part in the picture back on and run some vacuum lines, the surge eventually went away I’m guessing because the computer did it’s relearn, like whoever replied saying that the computer had to relearn


[img]blob:https://www.yotatech.com/33759e9b-5a80-467b-aee0-a19df5247cf2[/img]

 

this is a great thread. turns out, randomly pulling parts off your engine causes it to run weird.

 

Oh ˟˟˟˟˟ off bud don’t get smart, I had to delete the egr because it broke trying to pull it off and I wasn’t paying 200 or whatever dollars and I thought I could delete that also and it turned out I couldn’t, nobody likes a know it all

 

sorry, dude I just said what everyone was thinking. the right answer, although you don't want to hear it, was to study the vacuum diagram supplied under your hood (or online if yours is gone) before you started yanking parts off your truck. further more, the majority of people here would tell you not to delete the system anyways, but to repair the part you broke, seeing as how it would have been faster and more efficient, and not given you any of these problems.

 

turns out, i can't stand dumbasses, and can tolerate know-it-alls that actually do know-it-all. and keycw is 100% correct; most of the competent help here would have recommended putting the correct parts back on the vehicle and repairing the broken part, which would likely solve your idle issue. who would have thought, indeed?

i've never had good luck yanking random parts off of engines, especially those parts whose function i don't understand.