high idle

[sharpie]

my car idels high and i have no idea why. the last time i drove it was about 7 months ago, i havent really done anything to it ecxept change the oil and oil pan gasket. the motor is a b18c and the car is a eh2 ecu is a p28 i dont know what it is ideling at because i dont have a tach but my guess would be about 2000-2500rpms. any help would be awsome

thanks
Eric

[Spork]

I think it's official now, i hear this like 3 times a week.
idle air control valve (IACV)
fast idle thermo valve (FITV)

there is a valve on the bottom of the throttle body, it has 2 coolant hoses coming out of it, and is attached with 3 10mm bolts. remove it, and take out the 2 8mm bolts on the flat side. then screw down the giant plastic screw.

otherwise, check vacuum lines, and the idle screw.

[4Door]

I think it's official now, i hear this like 3 times a week.
idle air control valve (IACV)
fast idle thermo valve (FITV)

there is a valve on the bottom of the throttle body, it has 2 coolant hoses coming out of it, and is attached with 3 10mm bolts. remove it, and take out the 2 8mm bolts on the flat side. then screw down the giant plastic screw.

otherwise, check vacuum lines, and the idle screw.

true...

you can check the iacv and the fit with out removing them...

pull your intake off the throttle body, with the car running you need to put your finger over the lil hole on the inside top of the throttle body, if it stops surging, you need to clean your iacv with some brake cleaner or make sure you has a tight fit against the I/M...
if it continues, put your finger over the lil hole on the inside bottom of the throttle body, it it stops, you need to tighten the thermo the way spork described...
i had a problem myself a few months ago, turned out my pvc hose came off and was causing my problem...

[g3integragsr]

FITV cleaning

http://www.honda-tech.com/zerothread/1564019

[Silver Knight]

does it die/bog at all when you try and drive it? if it does it your IACV. if it fluctuates (surges), its your FITV. Have you checked your throttle cable at all? its possible that it may be a little sticky.

let us know what you find out. and good luck!

[sharpie]

thanks alot guys il check all this when i get home from work and let you know how it turns out tomorrow or later tonight

Eric

[H22boost]

mine did the same thing FITV valve,idle high screw in all the way, idle is low screw it as far out as you can

[sharpie]

true...

you can check the iacv and the fit with out removing them...

pull your intake off the throttle body, with the car running you need to put your finger over the lil hole on the inside top of the throttle body, if it stops surging, you need to clean your iacv with some brake cleaner or make sure you has a tight fit against the I/M...
if it continues, put your finger over the lil hole on the inside bottom of the throttle body, it it stops, you need to tighten the thermo the way spork described...
i had a problem myself a few months ago, turned out my pvc hose came off and was causing my problem...

ok so i did this and the idel came down when i put my thumb over the top hole so i pulled my iacv out and cleaned it and put it back in and it still ideled high so i pulled it out and did it again and tightened alot untill i couldnt anymore so should i just buy a new one and the top hole looks like it goes into my tps but i dont have the right torx(sp) bit size to pull it out and look

[sharpie]

ok so i worked on it some more and got the idel down so then i took it for a quick drive around the block and in the top of first it makes an horible ratteling/clanking sound and if i put the clutch to the floor it makes a whineing noise

[4Door]

did you clean the iacv with brake cleaner and were you thourgh, it helps make a good seal to the intake manni if you clean the manni side as well, just spray some brake clean on a rag and wipe the dirt and grim off, then take some motor oil and put a lil bit on your finger, spread it on the rubber on the mounting side of the iacv, you just need a tiny bit, then bolt it up...

as far as the rattles go... im not sure about that one...