horrible gas mileage is having a full tank of gas driving to school then coming back home and having 3/4 tank of gas

 

and where I go to college is only 3 miles one way.

 

Lots of short trips (especially in the cold) can result in massively bad gas mileage.. especially in a car not know for its gas-sipping tendencies. Not really good for the car neither.

Ride a bicycle to school! (I did!)

 

I was thinking of getting a programable ecu. What kind would you suggest?

 

<smartass>I had a chromoly Peugeot Bordeaux through high school, then joined the cycling team in college and bought an aluminum Cannondale R500 for competition. Kept the Peugeot for daily riding, but eventually broke the frame and had to have it re-welded.. only $10, though.. so no big deal.. There were no ECUs on either bicycle...</smartass>

Separate subjects, separate threads.. maybe search a bit too.. :p

 

I'm not talking about your bike. I'm talking about my car.

 

Personally, I would find the cause of your poor gas mileage before throwing a "band-aid" fix such as a fuel controller. The list posted before is a good place to start.

Are you talking about a full standalone ECU (which replaces your stock ECU) such as a Haltech or Microtech? Or do you mean a piggy-back such as an SAFC or e-manage? An SAFC or the like would be much simpler to install and tune, but would not allow control over timing.