Guest Anonymous Posted May 17, 2002 Share Posted May 17, 2002 Ok on my turbo intake it seems to be water cooled/heated, I do not have this on the N/A. What is the reason for this? and do I need to hook it up??? Any help is apprecaited Thanks Mark Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted May 19, 2002 Share Posted May 19, 2002 I can think of two potential items here. One is coolant for the throttle body, and it is not needed unless you live in an area where it is really cold. The second is called the AIC or IAC or whatever. It sits on top of the intake manifold and had a connection from the ECU harness and a hose goes from the throttle body to this device and then another hose goes from this device to a metal tube that connects to the J tube. This one you need, and should have the hoses connected. What this does it controls your idle during a cold start. When the engine is cold, the ecu tells the fuel injectors to shoot more fuel in there. this thing has a hole thru it with a little door that opens when cold to allow additional air into the intake, which raises the idle when the engine is cold. As the coolant going thru this device warms up, it closes this hole, bringing the idle back to its warm setting. I know the description is pretty poor, and you can run without this thing if you like, but it makes the car a little more difficult to drive when cold. NOt worth removing IMO. I am using mine. If you went to a stanf alone, you can probably get away with not using it, but most stand alones have a provision for controlling these devices. Nix the throttle body one those if you don't live in a really cold climate. Quote Link to comment Share on other sites More sharing options...
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