The button you refer to that you installed I presume simply runs the starter. The keyed ignition switch won't stand the extra amps that you will need to run all those FT sensors. Also, those old glass fuses have to be dumped. What I am suggesting is what I did. Instead of the keyed switch energizing a coil, have it energize a new relay under the dash. That relay will run the ignition and all the other stuff you add. Ignition on, relay on. In order to maintain the memory in the ecm, make sure that your power to the ecm is run directly off of a fused connection to the battery. That way the ecm is getting juice all of the time, even with ignition switch off. Welcome to the 21st century.
