alright, so i've been having a really bad idle problem, and i narrowed it down to my iac valve, well i bought a whole new tb, iac valve, and tp sensor... yeah, honda doesn't just have the one part... anyway, i put it on, and i still have high idle, i think i need a new ecu, but i'm not sure, anyone know where i can get one cheap??

 

Sill question - did you try adjusting the idle screw?

Try here too: http://www.ef-honda.com/ben/Badidle.php

Work it out 100% before you shell out for parts next time

 

yeah, still nothing

 

What kind of car is it I have a few ecu's sitting around.

 

01 civic. i was just looking around and found one, but seems kinda shady...

 

I really really doubt its the ecu

 

what do you think it is then? i let the car completely warm up, had the intake off and then covered up the iac valve hole, dropped right down to 700 rpm...
i'm outta ideas

 

Sounds like it might be a vacum leak.

 

but if it was a vaccum leak, it wouldn't drop when i cover up the iac valve hole correct?

 

If that's what it is doing then have you tried cleaning the surface were the valve mounts to and if you really don't want it to leak put some hondabond around the gasket of the valve then mount it.