For my EFI projects I needed some sort of fuel injector tester. I found great ready project from http://www.bgsoflex.com/fitester.html site. I did not have Motorola parts and programmer available so I converted hardware to Microchip platform. I also converted injector controller software to c. I have used Hi-Tech c-compiler for this project. Original project contains also very good theory and explanation of operation.

I used PIC16F873 part for this project because of its almost optimum pin count. 16F873 also has internal pull up resistors for Port B. This reduces part count.

You find Pdf format schematics here

You find project zip file here

• PCB front
• PCB back
• Bosh injector adapter
• Nissan (JECS) injector adapter
• Whole test setup
• Bosh and JECS injectors

I am using original Bowling Grippo software what can be downloaded here http://www.bgsoflex.com/fitester.html

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