I bought an 1996 Spi Equinox a few moths back and I am currently on with restoring it. While trhing to tidy the wiring up, I noticed an abnormal blue box sat in the engine bay with a few wires coming out, connecting it to the main loom and ignition coil. I pulled it out and confirmed it was a Superchips Icon.
A bit of digging on here and this modification is well documented. It seems to have had a rise and then fall in popularity and so I removed it based on the information I found.
To remove, it was just 4 wires spliced into the loom/ignition coil. Having now removed the physical unit, i wondered if I need to do anything else to completely eliminate it from my system?