One of the most dificult parts of building a standalone ecu for Hondas is processing the variable reluctance sensors that are housed within the distributor. These sensors produce analog waveforms a that are noisy and hard for microcontroller to accurately read. In order to make this signal usable, something called a VR Conditioner is used. Unfortunately, most off the shelf VR Conditioners do not work well with the Honda sensors. I have developed a circuit that I believe will work better for the Hondas sensors. Still waiting on a few components but this is what it looks like! Testing will begin shortly and after adjustments are made, a surface mount version will be designed.
