I feel stupid asking this, but I've never worked on a fuel injected engine before (only old harleys, CJ's and lawn mowers
What is this thing?
I'm swapping a head and MPI set up from a 1994 Jeep Grand Cherokee onto my CJ-8. I grabbed this thing from the donor vehicle, but I'm not sure what it's for and if I need it. It's got a 4 prong electrical plug that is still on the donor wiring harness, a spot for a vacuum hose, and a cable that fits onto the the throttle. I'm guessing it has something to do with raising RPMs for a warm up period or maybe the cruise control.
Has anyone done an MPI swap specifically with a 1994 Grand Cherokee? I read on some other posts that there may be a security system that needs to get bypassed on the computer.