I am dropping a new motor in and I was cleaning up the wiring and removing relays that don't apply to my car because it was a factory tpi car and it's carbed now. I couldn't find any information on what this black box is used for was hooked up to the left of the fuel pump relay and maf relays I am charging my battery so I can test if anything isn't working there are no numbers on it or anything for me to look up a part number any help is greatly appreciated.