Hi,
What a neat idea!
I assume that you want to use the injector driver in the ECU to run the injectors. By writing custom software to load on the ecu, you could make a nice interface using switches on some of the input lines to control the pulse width/duty cycle of the injector being cleaned/tested.
This is what Bruce Bowling and Al Grippo have done with their JectorRate hardware. See
http://www.bgsoflex.com/fitester.html for information on their hardware and software.
We already have the hardware in the GM ECU. We would need to write the software to run on the ECU to run the tests/injectors.
The test bench that I built uses an air compressor and regulator to pressurize the fuel in a small pressure vessel (12 in length of 2 in diameter pipe and pipe fittings), a fuel injection pressure guage, and the injector connected with hose and various clamps. I used a 9 volt battery across the wires of an injector plug to open the injector. Found 2 leaking injectors in my Storm that way.
I am rapidly learning the 6811 assembly language (simpler then the x86 PC assembler) and am trying to figure out how the I/O works. Writing software to do something like this will soon be something that I can do.
Keep us posted on your progress.
William