All you programmers out there can build and program your own
EFI system in Visual BASIC likity split relatively speaking.
All software takes a lot of time and is problematic
and buggy.

It is now possible to write a complete EFI system using some software
HyTek supplies for free and a copy of Visual Basic and or C.

The $90 HyTek DataAq PIC board is very similar if not identical to
Tracy PIC computer.
http://www.hytekautomation.com/Products/IDAQTL.html
In some ways it is more powerful.

You will also need a Windows net book or note book computer as well.
Windows net books can be had for as little as $200. The side benefit
would be a glass cockpit type complete full screen graphic engine monitor.

The iUSBDAQ - U120816 is the lowest cost USB data acquisition module which
provides eight 12-bit analog inputs, 16 digital I/O lines, two programmable
pulse-width output channels, and one 16-bit counter channel.

The package comes with  free  DLL software modules for doing your own
programming. Here is the critical example that sets the injector pulse
width.

 SECTION B
2.0 Calling DLLs from Visual Basic
In Visual Basic, all functions, including DLL
functions, that you want to call must first be
declared by using the Declare statement. You can
declare your functions in the declarations section
of a Form or a Module.

Of course this is the worst example of bloat ware but computers are
still getting faster and faster. I like to do my real time
stuff in assembly language,

Paul Lamar