For normal operation, I will be using the NB o2 sensor. When I am tuning, I will be using a WB 02 sensor. (I have three MS projects in the works. so, it will be shared amongst them.)
This is just a quick MS project. There are long term plans for the car, and it will be in stages. This stage is just "what is the quickest and easiest to get it working."
Stage 2 will be more toward MPFI. More than likely, not with this engine. Part of the reason, for quick and easy.
When I am done, I will post the complete cost.
Since this car never has had EFI, I used a relay board. Again, don't forget there are future plans, and I have tried to keep it open ended to allow for changes and other addons. (Possible turbo later.)
For the moment, I am stalled. I can't find the right intake manifold. I missed getting the right 240D intake.
Actually was trying to remove it, and didn't have the right socket. Went back and it was gone!
So, I am waiting to find one.
Thanks for the inputs.