Seems like an easy fix. Not to sound stupid what is a TIPM ?I ran an additional ground wire and it fixed the problem.
I added a quick connect to the ground wire at the base of the plug and ran the additional ground wire from there to the inside of the engine compartment, just past the TIPM (fire wall side). The additional ground wire was about 20"-24" of 16 gauge wire. I put an eye hook on the end and used a machine screw to anchor. You might have to drill a pilot hole first, depending on the screw you use. I didn't have any self tapping screws, so I did drill a pilot hole.
Hope this helps. Good luck.