i did what every one told me to do. i took of the IACV and cleaned the shite out of it. put new O rings on put it back and my engine is still reving up and down from a cold start. seems like alot of people have this problem but never really fix it. some people told me to bleed the IACV but how do you do that? HAS ANYONE ACTUALLY FIXED THIS ON THEIR CAR BEFORE AND HOW DID YOU DO IT(step by step info would be nice)? thats all i want to know. i searched but it all comes up with half assed answers. thanx

 

if uve taken care of the IACV...have u checked for vacuum leaks? I used carb cleaner and where ever it was bubbling up there was my leak h:

 

If it's on a cold start then it's the FITV. It's underneath the throttle body, is held in by three screws and has a coolant line attached to it. Removed the three screws and the coolant line. Inside there is a springloaded plunger with a white ring around it. Use your fingernails or a a flat head screwdriver and turn the white ring. The plunger is basically threaded inside of the FITV. It can come out over time. When I removed my FITV the plunger actually fell out because it was completely unthreaded. I'm about 99% sure this is the problem.

 

:werd: I'd be surprized if this doesn't fix it. If it doesn't, I'd say it's a vaccum leak.