Let's get technical: Tuning the ECU for mpg

[Spencyg]

Very interesting. So the LC-1 can actually output a modified signal to the ECU? This could be a very powerful tool to those looking to tune to a leaner burn condition. It must act in a similar (though seemingly much more advanced) manner to the unit provided by eagle research (see the link above). I have done lots of research on stand alone systems such as the Megasquirt. They all have their benefits and drawbacks. The biggest drawback I see with ALL stand alone systems is that they require the use of their own sensors. This means you can't just cut into the stock harness and hit the ground running....you actually need to convert the entire engine management system over to whatever the system of choice requires. This is a serious drawback for those of us wanting something that is nearly a plug-and-play setup. Megasquirt is an odd duck. Its entire system is based on "open source" knowledge and technology....from the board design all the way up to the system programming. I'm not an electrical engineer, and I know when I should count my losses and run. This is exactly what the Megasquirt would cause me to do! For those interested, do some research on the Greddy E-Manage Ultimate....its a nice compromise between an LC-1(I assume) and a full stand alone (such as Megasquirt).

Spence