sup guys. another problem. i fired my car up for the first time today, after i swapped z6's in my ex. at first it idles at 2000 rpm for bout 30 seconds, then goes to non stop 1000-1800, non stop. it's annoying, and im wondering wat it is since i still have to go for emmisions, i wanna fix everything before i go. anybody can help me. im not sure wat kinda details u need to help me, but watever u need to kno. lmk. thanks

 

Is it timed right?

Its actually normal for your car to idle high then drop to low. When the car is cool it needs to heat up so it idles higher. It only does that with an aftermarket intake though. Your car should be ok for emissions, but they may tell you to rev it to a limit. OR just turn up the idle screw after the engine is warm

 

did you properly bleed the coolant system?

you can start by checking your iacv, and iacv seal. and also check your fitv.

how to clean your iacv
https://honda-tech.com/zerothread/1575913

how to clean your fitv
https://honda-tech.com/zerothread/1564019

 

i switched the iacv, and now i get a steady 1200 rpm to 1400 rpm, non stop up and down. wat is that?

 

thats probably your air flow sensor. Did you have an aftermarket intake?

 

sounds like a vaccum seal, or perhaps the iacv seal itself is leaking.

 

nah. i have the stock intake box. but i did take off that huge part that goes under the intake box, kinda looks like a trap. i was also wondering, wud the o2 sensor be bad and cause this type of problem. it's jus a steady jump from like 1300-1400 rpm, and i bled my system today, and after it was runnin for like 10 mins, it stopped, cud air pockets have caused this?, i haven't gone out to test it again, but soon as i do, i'll post up and let u guys kno wat happens

 

You still have the peice you took off right?

 

yea
wats it for? wats it do?
stoopid question?