I swapped a b20 into my DA 1990, I used the factory wiring harness, and ecu... I just spliced the ECT/cts b/c it is in a dif location but, I could not figure out where to hook the oil pressure sending unit wire... Im going to remove it to boost and throw it on a "T" but i have been running w/o it for a while and I kinda trust/want it back, help me out if you can thanks