Stage 1 - Controlling injection
Due to signal split difficulties, I skipped Stage 0, and start to wire the car with this stage.
Harness
I have disassembled a harness from junkyard, not exactly the same as the original one, but it's from a '98 BMW, connectors seems usable, and have a lot of double-colored wires, relay connectors, fuse houses, etc.
Note:
- for 3-pole AMP connectors I've found two types, Code I and Code II. They are not interchangeable. (photo soon)
- for 2-pole AMP connectors I've seen Code I only.
I had difficulties to live both (motronic and genboard) harnesses the same time, since there's no room to wire so much more things from engine bay to the glovebox (small hole on firewall, sealing fits). I removed sealing temporarily, this gives much larger hole in the firewall, but wires have a direct contact to somewhat sharp metal.
Since motronic has to go either in Stage 2, I decided to move the whole motronic harness and ecu to engine bay temporarily.
Genboard harness will go to the glovebox. I've checked that both motronic and econoseal connectors can be pushed over on the hole in firewall.
One issue is with this config: I had a 3 pole connector from main motronic conn. (photo soon) to instrument panel which is vital to work. It contains instrument panel signal, tacho signal, and ignition switch signal (to motronic!). I have to prolong these wire somehow.