as we all know our cars run with a little extra get-up-and-go when we first start them for the day. cooler air in the engine bay certainly helps, but do you think the cold start injector has a hand in this aswell? would you expect your car to have a little more jump if you ran a toggle switch for it?

 

The key is air, not fuel.

Also, a large debate going on lately as to weither or not the csi has the ability to shoot fuel down the length of the 6 runners. Meaning the back one would be really rich, and the front lean.

The ecm also controls the fuel to a point, if you need it, the ecm will tell them to spray more up to that point. After that, you honestly need larger injectors and reburn the prom.