ABS light on and hard start? Since I don't have any of those problems, I doubt it is the OVP.

This is what I found. When car is hot, I got an open circuit between idle tips of TVS and low voltage on ICV (3.5 V). I will measure again tomorrow moring when the engine is cold to see if I got a close loop on TVS idle point. May be, just may be, the TVS contact is loose and the expansion when car is hot makes it bad.

Where did you get your OVP? Does it come with one fuse or two? How did you pull the OVP out? Just by force? Thank you very much for your input.