Car was running great like a champ but I decided to wash the car at a touch free automated/rail-less carwash.

After pulling out of the carwash I had a CEL(Coincidental??*shrug*?)...
I drove home (2 miles)... Checked under the hood and I park the car and notice a vacuum line popped off near the throttle body
[SAMPLE IMAGE BELOW] I DON'T HAVE A BOOST LEAK THERE (where its shown)
The black and white line was popped off *shrug* hmnn?

In anycase it was plugged back in ..Then I reset the battery and then the car didn't want to hold idle...a few cranks over and all of a sudden it was fine? but I'm on my way to work this morning, and the car stalls when slowing down =/? any ideas?
Thanks.

 

did you recheck that vacuum line? Inspect to see if you have any other hoses popped off. What codes did it throw? What bov do you have ?

 

Not sure if its related, but i have a similar issue w/stalling when coming to a stop or slowing down (from higher rpm's).

My boy cleaned out my IACV, and that cured the problem. But it came back after a month or two.

 

Try cleaning ur MAF n throttle body..

 

What BOV you have?

Ive heard of that being the issue sometimes

 

im also interested in this. ever since ive changed cams GSC s2s ive had this issue from slowing down from high speeds the car wants to stall and the idle rpm is all rough

 

I looked for the code (its gone ) since I reset the battery.
I have my tactrix cable and a netbook in the car now to check for next time....

I have a forge bov(recirc), its not sticking or leaking as its spiking to 30, and holding at 27 for my E85 tune.
I think I should clean my MAF again (its been about 8000 miles since I last did, as when I shut the hood the idle fluxuates(it did it before when the maf was dirty).

Checked for vacuum leaks spraying brake kleen yesterday and I can not find any. (around the Intake Manifold/Throttle Body/ and all the other fittings....
My "Tech" friend who's familar with the 4G63 blocks has a feeling it might possibly be signs of a bad IACV but said to wait until it throws a code again before I aimlessly spend cash trying to fix things

 

A. Ziptie any vacc line you can get to B. Anyway you could have gotten a decent amount of water onto/into the air filter? C. Handwash FTW!

 

Your ECU needs to re-learn how to idle.

It happens to me everytime I reset my battery. I'm on GSC S2s with 1200cc injectors and e85

Let the car idle for 10 minutes or so. Also, after driving it around a bunch it should stop wanting to stall. If not then I'd imagine something is potentially wrong with the tune

 

Seemed to act 100% normal today hmnn

 

I agree with taylorgang ecu needs to relearn the idle.

 

yep, what he did ^^