When I swapped the AW4 I had all the wiring layed out like an autopsy. The several ground wires came together in sort of a matted terminal crimp...about 7 or so of them...and then attached all together with a big butt splice to a main ground wire.
I did pull that all apart, cleaned up all the ends, hot soldered them all together and soldered a big ring connector with shrink tubing, taped it up and slid it in to a split loom case. The dipstick bolt was all funky so I cleaned out the whole threaded hole with a gun brush, sanded off the block and bolted the whole mess to the block. I KNOW that part of it is tight. Within the harness...meh...not so much.
It seems that what I know is good, might not be. I'll run the tests this weekend and likely replace the TPS if I get funky readings from it.
...and again, thanks for the help.