It's a white plastic "door knob" part directly left of the air filter assembly.
The idle valve is located under the intake manifold. It has to be removed from the bottom of the vehicle. Have a 2.6 Isuzu pickup and i had to replcace it.......hope this helps
The engine is a 4zd1, 2.3L, 5 speed, rwd, 8 valve.
The 1989 Chevrolet S 10 pickup idle control valve is located on the side of the engine. You will find the valve below the fuel injector pump.
http://www.planetisuzoo.com/articles.htm?id=64&How_to_adjust_your_own_4cyl_Isuzu_valves
to control the flow of air fuel mixture
above the throle body
valve clearance for Isuzu 4ba1 engine is 17.00.
Specs! There are no Specs on this that I know of. It is a $150 dollar piece the Japanese put on Isuzu vehicles. Once it deteriorates from the inside your engine will either start loping and idle higher than normal or both! On pickup trucks it is located on the passenger side inside the engine compartment next to and behind the battery. It looks like a door knob and made of white plastic. There is a large hose coming from the carburetor to underneath the MCV (Mixture Control Valve) and then there is another hose coming out the side. You can disconnect the small side hose and/or the large hose and stop up the larger one. Your engine may still idle higher but is better than it loping up and down. Good Luck!
According to the Haynes manual for 81-93 Pickups and 94-91 Troopers: for 4ZD1 2.3L Engine: Valve spring free length:1.8951 to 1.8321 in (48.10 to 46.50 mm) Hope this helps! mnemonic76 1988 Isuzu Pickup (PuP) owner
the idle control valve on a 318 is on the back side of the throttle body. Held on by two torqs screws.
the air intake valve is located on the side if your air cleaner/air box.
where is the pcv valve located on a 1995 Isuzu rodeo v6 3.2l