Oct 21, 2008 · Does your prelude idle fluctuate up and down? Chances are your Idle air control valve has gone bad. There is a quick and free way to bypass this with some simple steps below: Start the engine.. let it warm up to normal operating temperature.

Apr 24, 2006 · When the wax is cold, the valve is open and your idle is high, but when it warms up, the valve closes and your IACV takes over. Blocking off the holes in the bottom of the throttle body allows you to ditch the FITV, and your IACV will handle your idle on its own.

Sep 17, 2007 · I've eliminated the sound temporarily by clogging the tubes that connect the air flow from the IACV back towards the intake manifold, but it idles like shit now.

This is a sale for a brand new genuine Honda Accord SiR Prelude Si-VTEC Type SH Type S H22A DOHC VTEC Idle Air Control Valve IACV or Electronic Air Control Valve EACV from Honda Motors, TEC Japan. They can be easily installed on Honda Prelude H22A DOHC VTEC OBD1 and OBD2 air intake manifolds; located at the front of the manifold dashpot.

Sep 24, 2007 · Ok swapped for brand new IACV, bled coolant, adjusted idle w/out IACV hooked up and still surges at idle. I put the idle at 600, then turned off car reconnected IACV, then unplugged negative terminal to reset ECU.

Find many great new & used options and get the best deals for 92-96 Honda Prelude OEM Idle Air Control Valve IACV DOHC SI VTEC H22 at the best online prices at eBay! Free shipping for many products!

Item was as described, in good condition. Quick shipping. I have many more Prelude parts, ask if you need a part and don't see it listed--. This will fit Preludes all H22A/A4 Engine.

Jan 1, 2010 · Basically coolant travels from the engine, to the throttle body, and then to the IACV (idle air control valve). in NO WAY on the H22a or the F20B does the coolant control anything, the only reason for it is to stop the throttle body and the IACV from sticking in very cold climates (say if you were driving around in the snow on a cold morning ...

Apr 10, 2008 · hey all, ok so the other day my h22a started idling at 2500rpm, i changed throttle bodies and it fixed the problem for a day. now it is idling at 3000rpms... i've checked all my vaccuum lines and there is no leaks, when i plug the TPS sensor in it starts jumping idle from 800rpm-3500rpm???

Start the engine, and hold it at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194 °F (90 °C).