Universal tunable Electronic fuel injection
 

I have been hunting down an engine management computer for my Jeep project. The stock Jeep computer is not easily programable, even the tuners are just add on modules that intercept the sensor signals and adjust them.

I finaly found something that should work, I havent looked at all of the systems, but most have the ability to customize the fuel and timing maps, and even tune individual cylenders. Very flexible systems. Some even have the ability to have multiple maps for different fueling modes. They are a bit pricy though at $1000+.

DFI

Haltech – Engine Management Systems

TEC³ - by Electromotive

MoTeC > About ECUs > Overview

Have you looked into megasquirt?

+1 for this, from my experience it is simple, easy to install and has great support and also features are possible to extend much depending from what you need.

Cost is just fraction from those other systems and it works really well as oem EFi replacement where it was designed for.

Megasquirt II chip offers then much more accuracy.

I find autotune quite nice feature, that is missing from some very expensive systems, just set it to autotune mode via laptop and cruise around, software will make fuel map.

There is link if you would like to know more about it:
MegaSquirt - Electronic Fuel Injection Computer by Bowling and Grippo ©2010

Another vote for Megasquirt 2. I drive with it every day.