It looks like I may have more that one problem. Because I was confused about "PWM" (pulse width modulation) I left out a step that helps run the injectors. There may also be a power issue in the truck and a computer connection problem. I will just have to sort some stuff out. The good news is that by doing it this way I can put the stock ECM back on and check out the truck. I can hook the computer to something else through the serial port and check that. I will add the flyback circuit and reload the basic parameters. A couple of hours this weekend will answer some questions. I hope someone at the convention will make a video of the TBI conversion there. It will be much the same as the Boneville Demo. Beater


"I wonder if God created man because he was disappointed in the monkey?" Mark Twain