Small update. Haven't been working on the injection lately, had some other projects that had priority.. About the project, I have a lot of troubles and with the missing electrical experience it makes it sometimes a hard one, but that's also why i'm here, to learn. And to write down what i have leared during the project
To make it even harder i used a car without a running EFI, so all problems that pops up could be one of the ecu, but also in the wiring, sensors, fuses, relays, etc. So lets be sure all exept the ecu itself is working.
I refurbished an old MS2 and soldered an adapter for the ecu connector to connect the ms2 directly to the existing wiring. I also modificated the ms2 a bit, i removed the rs232 ic for a FTDI communication.
There was a strange issue with the ftdi tool and the ms2, when i disconnect the tool, the coil output wont fire anymore. with the tool connected also not, with the usb cable it did. Also the car wont start, no matter what. Because i can switch between old and the ecu with one wire i noticed the ecu runs perfect when im not cranking (switching wires on idle with the old ignition to the ecu). Turns out i got an old model ms2 thats goes to boot mode when Rx is held low. So modified the ftdi board and now the coil if firing properly on all conditions.
The strange issue is, the cranking issue is also solved.. Starts immediately! Huh? So ther Ftdi tool had a sideaffect on the cranking conditions? Doesn't make sense, does it? I noticed the same issue ony my own ecu, but i dont see how this could be the same issue..
SO.. Lets see last as a small succes (i got an ms2 to work, Yey!.. lol) and lets go on with it! For now first i need to get the fuel injector to work, so i cant switch from LPG to petrol and finish the car and wiring itself to a propper working environment.