[hotbug1776]

Anything you do to introduce more air into the mixture will introduce more fuel, thus lowering fuel economy. if you are interested in maximum fuel economy, keep the stock setup. Get the plugs, wires (for a 2.2L), and fuel filter done. Also, have the fuel system cleaned, and the transmission flushed (for an auto trans). put it this way, I have a HO quad, set up for racing, and I get 34-36 mpg highway, and 28-30 city, your gas mileage sucks bad.

The light for the coolant level is controlled by a sensor on the coolant reservoir, it most likely went bad. the light shouldn't cause you to go into a limp mode, but it will keep you reminded to check your coolant.

as for a reminder....the "Tornado" and all that other garbage they sell touting "better mileage" and "more horsepower" is all LIES!!!!! do this, wrap your filter in plastic wrap, put it in the car, try to start the car, the "Tornado" causes almost as much air restriction, and costs you almost as much horsepower. if you lower your horsepower, it will takes more fuel to make more power to compensate for the lost power, also you will use more gas going up hills and starting from traffic lights.