[Success Story] 1998 BMW V12 engine M73 #55

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AndreyB
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Re: 1998 BMW V12 engine M73 #55

Post by AndreyB »

In OEM form two ECUs are sandwiched one on top of another, with OEM harness not allowing to place ECUs next to each other horizontally.

It's a simple mod: once you remove 21 cm / 8 inches of tape you get enough wire length to place connectors horizontally! With this our M73tu Proteas adapter would be a single PCB!
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bill
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Re: 1998 BMW V12 engine M73 #55

Post by bill »

those connectors on both boxes are exactly the same!
how do you keep from plugging the connctors into the wrong box?
mck1117
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Re: 1998 BMW V12 engine M73 #55

Post by mck1117 »

Here's the trick. You don't. The boxes are the same.
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AndreyB
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Re: 1998 BMW V12 engine M73 #55

Post by AndreyB »

Do you see the future https://github.com/rusefi/proteus-m73tu-adapter in this preview?
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AndreyB
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Re: 1998 BMW V12 engine M73 #55

Post by AndreyB »

1.5ft of adapter board ordered!
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AndreyB
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Re: 1998 BMW V12 engine M73 #55

Post by AndreyB »

Need help:

I will solder Molex 39301020 on my adapter for ETB DC motors.

Question: what part numbers do I need to make harness side to plug into Molex 39301020?

https://github.com/rusefi/proteus-M73tu-adapter/issues/20
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Zeiss
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Re: 1998 BMW V12 engine M73 #55

Post by Zeiss »

Hey Andrey,

housing: Molex Mini-Fit Jr. 5557 series
crimp terminal: Molex Mini-Fit Jr. 5556 series

Housing should be this one: digikey

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Regards,
Heinrich
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AndreyB
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Re: 1998 BMW V12 engine M73 #55

Post by AndreyB »

Molex stuff has arrived, next step finishing ETB harnesses.

kiwi for scale.
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Zeiss
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Re: 1998 BMW V12 engine M73 #55

Post by Zeiss »

It is a pretty huge board!
Regards,
Heinrich
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