AMP 927771-3 terminals from onlinecomponents.com - I bought 100 on a roll and separated them myself and saved a few $$. Our harnesses require 30 - 35 terminals depending on the TPS (4 or 5 wire) and Pulse Generator (5 pole socket or fixed lead to 5 pin connector). My car requires 31 terminals.
AMP 928516 is the 2 pole housing
AMP 928517 is the 2 pole plug
Audi / VW 443 906 232 is the whole thing I think
AMP 962443 is the 4 pole housing
AMP 962444 is the 4 pole plug
Audi / VW 4A0 906 234 . . . (the 4A0 is not a typo - I checked 3 of them)
AMP 929554 is the 5 pole housing
AMP 929555 is the 5 pole plug
Audi / VW 443 906 235 . . .
I have not cut the 5 pole housing because I only have two of them on hand. I got all these from U-Pull-&-Pay in ABQ; I have not verified the Audi / VW info, just reading numbers on the housings. One thing I forgot to mention about these Audi plugs - terminals can be inserted and removed easily with a pin or paper clip. This is nice for assembly and future repair.
The Bosch / Lucas boots can be puchased from B&B Auto Parts
75-76 Cosworth Vega EFI Harness Rubber Boot Set
I bought a roll of ignition wire insulation from a local speed shop - more than adequate to protect what I have made so far. I am using the correct color wire harvested from salvaged engine harnesses from 107s, 108s, 109s and 116s. The wire from the ECU plug to the branch split has been well preserved in all my salvage harnesses. Some of the VW guys are using MIL Spec wire and gold plated terminals. As I said earlier, I am in the experimental phase.
I am using a Paladin 1302 crimper with a 2033 die. It took about 3 crimps to get the hang of it. Got these items from Amazon.