Ok so I finished building the 6.2/427 yesterday, installed it into the truck today, and got it's first start in! It cold started no problem at all, and idled well, then all of the sudden at running temp the dash read out, "Reduced Engine Power" The idle dips to about 550 and keeps running, then just dies, and will not restart again.... So I went over everything and found that there is a wire that I forgot to connect on the backside of the engine. It's on the same wiring harness as the Oil Pressure Sending Unit plug, and is about 4 inches away from it. It has about a 5 inch lead and it is a 5 wire plug. It's black, and the dust boot's color is blue. Where the hell does it go?! Sorry to ask this on this forum but perhaps it could be tuning related. I probably would not be asking this question, but I was not the one who removed the standard 6.0L in the first place.... So through the whole build it has been meticulous trial and error.... Anyways, please, any help or suggestions would be greatly appreciated.
Thanks,
Robbie.