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hack a motronic 1.3
Posted: Fri Jun 28, 2013 10:50 pm
by tooly
hi,
i hacked a motronic with ms2code and mc9s12 prozessor
it works but i would do it with an MC9S12XA512 and freeems code
i cant found all the pins i need and i hope you can help me
a not complete schematic of the motronic 1.3 you can find here
http://www.e34.de/tips_tricks/motronic/m1_3.pdf
thomas
Re: hack a motronic 1.3
Posted: Fri Jun 28, 2013 11:34 pm
by Fred
Can you list, in (English) words, not acronyms, nor Bosch-specific terms, the full complement of functions that you require?
EG:
2 injector driver outputs
4 coil driver outputs
1 fuel pump relay
coolant temp sensor
etc etc etc
or whatever you happen to need in that device.
Be warned, FreeEMS does not have, and will not have, selectable polarity for coil or injector driver outputs. Logic one/high/5V is dwell/inject. If you need something else, you need to physically invert it on the little board, or run hacked code forever.
Once you list it all, I can help you.
Fred.
Re: hack a motronic 1.3
Posted: Sat Jun 29, 2013 8:56 am
by tooly
Fred wrote:Can you list, in (English) words, not acronyms, nor Bosch-specific terms, the full complement of functions that you require?
EG:
2 injector driver outputs
1 coil driver outputs
1 fuel pump relay
2 output for 3wire stepper
3 (spare output)
coolant temp sensor
intake airflow temp sensor
map
tps
battery voltage
crank in (5v logig level)
cam in (5v logig level)
Fred wrote:Be warned, FreeEMS does not have, and will not have, selectable polarity for coil or injector driver outputs. Logic one/high/5V is dwell/inject. If you need something else, you need to physically invert it on the little board,...
thats the point there is not enough place to did this
and this 6xbosch-driver need a lowlevel to activ
Fred wrote:Once you list it all, I can help you.
ok
did it
thank you