Relocate ECU

[castaway12000]

In my attempt to move the ECU....


I want to build an extension for the factory harness.


I'm looking for male and female plugs to build the extension, that way it's a plug and play move.   PayPal payment if needed

[rbm]

Ebay auction for the female end:  352051836511
Wrecker's yard for the male end:  Find a scrap ECU from a Volvo 740, or BMW Series 5 or Series 6 or 320i, most any German engineered car from the same era.  That might also yield a scrap female connector.

[mdh]

And how does one connect these parts together? Wiring it up?

[Scott_]

Like RBM suggested, but I'd add to the suggestion that you look for a scrap one from the same model bike so that the pin-outs are the same. Just in-case you find one end or the other that is not "fully loaded" with the contact pins.

[mdh]

Thanks for the pointers! Unfortunately RBM's links doesn't work anymore, so I have no idea what he is referencing to.  :dunno2: 
None the less, I guess the idea is something like this:


Normal situation: [HARNESS-F] - [M - ECU][/font]
New situation: [HARNESS-F] - [M]_[F] - [M - ECU]
[/size]How does one make the [/font][/font][/size] [M]_[F]? By soldering of crimping the connection? [/font]
[/size]
[/size]Lastly: I looked for some alternatives and came with some results. Would this fit e.g. fit the extension?
[/size][/size]https://uk.rs-online.com/web/p/pcb-headers/7183837/?origin=PSF_435704|acc [/color]https://uk.rs-online.com/web/p/automotive-connectors/7186776/[/size][/font]


Thanks in advance

[mdh]

Sorry for the double post, i noticed the mark up got messed up and I couldn't edit my previous post, so here's what I said before


----
Thanks for the pointers! Unfortunately RBM's links doesn't work anymore, so I have no idea what he is referencing to.  :dunno2: 
None the less, I guess the idea is something like this:

Normal situation: (HARNESS-F) - (M - ECU)
New situation: (HARNESS-F) - (M)_(F) - (M - ECU)

How does one make the (M)_(F)? By soldering each terminal on the (M) side to a single wire on the F side? Or is there a way to crimp it? Overal it seems labor-intensive.

Lastly: I looked for some alternatives and came with some results. Would this fit e.g. fit the extension?
- https://uk.rs-online.com/web/p/pcb-headers/7183837/?origin=PSF_435704|acc
- https://uk.rs-online.com/web/p/automotive-connectors/7186776/


Thanks in advance!

[rbm]

Hi,


What you posted is the correct situation description:



Normal situation: (HARNESS-F) - (M - ECU)
New situation: (HARNESS-F) - (M)_(F) - (M - ECU)


So, I believe I posted a link to an Ebay seller offering a spare harness, IIRC.  You will need a source for the male and female connectors.  I am not sure these are off the shelf parts that you can find at an electronics supply.  The TE Connectivity connectors you linked to are for PCB edge connectors, which is incompatible with the ECU connector.   The Jetronic ECU is used on a variety of '80s automobiles -- BMW, Volvo, Audi, etc.  You might be able to find a donor ECU plug and mating harness from a junk car.  An alternative would be to extend the harness by cutting the existing harness and grafting in a extension.  That will take soldering and electronics skills as there are 25+ wires to extend.

[mdh]

Got it, thanks rbm! I might have found a Volvo ECU which can use for the male connector.  I'll also buy an off the shelf component for research' sake.Can't wait to see the inside of the ECU. It's an analog one of course, so no PCB circuitry. Nonetheless, still have no idea how the male connector of the extension will have to be connected to the female part. Have you opened the ECU before?

[rbm]

Sorry mdh.  I don't own a spare ECU and therefore I am reluctant to open up the only working one I have, risking ruining it.  And I don't have a breaker's yard nearby with a selection of 80's European cars to raid.

[Laitch]

Have you opened the ECU before?

Quite a few images are online. One is likely the key to understanding.

[wmax351]

I've tried to buy a male ecu connector before. I wasn't able to find one really. Easiest option is a trip to picknpull or ebay for a spare ecu for one of a number of cars. The connector then can be desoldered, then resoldered either via a piece of perfboard or dead bug style. Once resoldered, you can then pot the back of the connector in epoxy or similar.