One of my current projects is Mitsubishi Eclipse 2L 16V turbo Engine 4G63 DOHC Year 1991 US version.
Target is 350-400Hp using little bigger turbo from Evo3, forged internals, 70mm exhaust, injectors, fuel pump, intercooler....
As stock wiring harness is in good condition we use it and fabricate adapter loom from old Hyundai ECU PCB connector.
So I have two basic problems: trigger and stepper.
Here is picture of optical sensor:
On outer trace is 4 evenly distributed holes. On inner trace two. Is it possible to use inner trace for camsync?
Second problem is 6-wire idle stepper:
2nd and 5th pins are 12V from main relay. Connected somewhere deep in loom. I got stepper working in terms of opening/closing from keyboard mdi command. But it becomes hot because stepper chip keep all four pins grounded. Is here some delicate solution?