This is my wife's daily driver, '83 Porsche 924 with 2.0 liter inline four. It had nasty K-Jetronic and transistorized ignition before, I made EFI conversion to it using 240cc High-Z injectors, custom fuel rail and VAG active COPs. I used stock ignition for couple of days and everything worked ok.
Main problem is that I can't the coils to work ok using i259 logic outputs. Today I downloaded experimental new MT+ 1.1.0 firmware and uploaded it to VEMS and configured it to use stepper outputs, but I did not get the engine to fire. Could someone (Marcell?) review my config+tables ( MembersPage/PeepPaadam/PorscheNineTwoFour/Config ) and note if there's some mistake or other obvious thing that I've overlooked?
So, no workie with stepper outputs, so I unsoldered 511 Ohm resistors from logic-level outputs and used 200 Ohm ones instead.
I got the car running ok.
But, I need to use "inductive pullup" to get the tach working. Could someone draw a small schematic how to connect the 22 Ohm resistor and 220 mH inductor to the IGBT output together with tach input?