rusefi.com

I've been working on a Plug and Play ECU solution for cars fitted with a Motronic 1.3 ecu.
I got my interface board from jlcpcb which was designed around reusing the OEM connector and housing. I never liked the OEM case since it's held together by bending the lid's tabs, which easily break after bending them a few times plus connector/case harvesting is no fun.
An alternative is getting the Yanvar/Mikas cases but they were only used in Russian cars and the board is apparently pretty small.
Then there's still the issue of not having enough pins on the 55p connector for additional IOs.

So what i did now is designed myself a case around the TE 55p connector which is readily available. It has an additional 26pin TE connector which will be used for things like wasted spark, CAN, ETB etc. The base plate is lasercut aluminium (sendcutsend does that for <15$ qty 1). The rest is 3d printed, the riser in rusEFI orange PETG and the lid in CF enforced PETG. Held together by 4 screws that thread into the base plate. This is an early revision still and there will likely be more mounts for the interface board. MRE's USB connector will be accessible too (can we get USB-C?)

Very very... very very many positive adjectives

I will have your motorcycle, gerbers, sources, models, boots?

I'll release all the files once I've fully assembled the first case.

That's come together really nicely.

Small update:
Got a new rev from JLC, was able to run a full stock US spec late model E30 325i.
Added an ESP32 to get wireless Tunerstudio connection.

wow it looks spectacular, I would love to know more about your project to implement it in my e34!!i love your work

Microrusefi is no longer scailable as module but we did not see enough demand to make a 55 pin hellen yet

There are also a few barriers to M1.3 PNP, mostly the trap door air flow meter with IAT integrated, the non-variable TPS and 3 injectors wired in a batch.

All of these are fixable but would require time and supplying TPS conversions etc that right now does not make sense.

so the best way would be an installation from scratch doing all the wiring and replacing the elements you mentioned.

Thank you very much

Pretty much.

To do my E30 I installed an M50 TPS sensor, a GM 1 bar map sensor and the individual coils from an M50.
However I would recommend smart coils of some kind instead of the older and hard to find M50 ones.

I would take a look at the wikis page on ignition hardware.
https://github.com/rusefi/rusefi/wiki/Vault-Of-Ignition-Parts