EFI

[Alister_McRae]

What exactly is an EFI car, and is a Galant one?

[Alister_McRae]

And another question, does anyone happen to know the diameter of the inside of the air intake hose and both ends? thanx....mike

[Fishboy55]

EFI is electronic fuel Injection, and yes the Galant uses EFI. Here's basically how it works. When you step on the gas pedal, the throttle valve opens up more, letting in more air. The engine control unit (ECU, the computer that controls all of the electronic components on your engine) "sees" the throttle valve open and increases the fuel rate of the injectors in anticipation of more air entering the engine. It is important to increase the fuel rate as soon as the throttle valve opens; otherwise, when the gas pedal is first pressed, there may be a hesitation as some air reaches the cylinders without enough fuel in it. Sensors monitor the mass of air entering the engine, as well as the amount of oxygen in the exhaust. The ECU uses this information to fine-tune the fuel delivery so that the air-to-fuel ratio is just right.

As far as the diameter of the intake, I think it's three inches, but don't quote me on that. Hope this helps.

Chip

[Alister_McRae]

Yes it definatly helps alot, thanx a bunch!

[Tiller]

3" is correct...