Ok so I'm doing this swap for a friend of mine. I have been playing and researching for three weeks. Here is the story... obd0 harness obd1 ecu (p28 chipped by phearable) obd2 engine Converted the 1 ecu to 0 harness using a sub/conversion harness Converted the 0 harness to 2 connectors chopping up the 2s harness I can not get a signal to fire the injectors, the fuel pressure is there. The injectors have been tested and work. 12 ohms across each one give or take .2 so I don't need the resistor pack. The wiring has been tested all the way back to the ecu to fire the injectors manually plugging a wiring into the harness that directly plugs into the ecu plug and then taking that to ground. This will fire each injector with the key set to run with the fuel rail pointing out to the atmosphere. Have tested ckp cyp tdc on distributor to the best of my ability. And I do have spark on the spark plugs. So a few questions, What generates injector pulse width? Which pins on the ecu do I need to jump to pull a code? (I think the colors are brown and black but which pins are they? Or are the colors brown and light blue [both data link connectors]) And which wire outputs to the actual dash light? Can this wire connect to chassis ground for its ground?