First, thank you Mr. Dalton for the time !

I'm sorry about the miscue on "...proceeded with OVP, I checked pins 86 & 87 with a bulb tester ....", what I meant was checking OVP 12v input at FPR socket where pin 86 & 87 inserts, my bad !

I'm going to follow your instruction chronologically tomorrow morning, the only item I'm concerned now is what kind of gauge I could use for the fuel pressure at the rail, would a common water pressure gauge be suitable, I havent really taken a look at that part to sensibly think of what can be used, sorry if its a dumb idea.

I will post results immediately after checking.