how does the ecu come apart?

**pauldarcy** · by **pauldarcy** » Sat Oct 16, 2004 3:05 pm

have chips for my cally turbo 1993, although case is easy to remove i am struggling to part the two printed circuit boards please help. i know it's been posted before but my computor keeps crashing after a few minutes, been practising on spare but cant even wreck it apart

Stupink · by **Stupink** » Sat Oct 16, 2004 3:27 pm

look in where the pins are to connect the loom, either side there are two pins that you need to push to unclip, then with the board legs uncliped the top board should slide down and out.. ish.. kinda.. hahah.. its evil.. but if you look closly you'll see how its clipped in,

**Kieran_Burns** · by **Kieran_Burns** » Sat Oct 16, 2004 3:31 pm

It's a bit of a fiddle.

To take 'em apart... pull... there is a plastic connector in the middle that needs the centre section removing from it - this releases the two sections, then it's a matter of pulling apart at the ribbon side

As for getting the top section to flip back...

Look at the connector block. Below the top line of connectors insert a flat blade screwdriver and push in and down , you'll see it start to move away...

Okay, now at the same time wedge another screwdriver between the edge of the PCB and the connector housing and push back (separating them). It takes a bit of a push but it does work (honest!)

The top section of pcb will pop out and

Obviously be careful, and if you were nearer I'd offer to do it for you...

**pauldarcy** · by **pauldarcy** » Sat Oct 16, 2004 4:23 pm

thanks to both of you, will post my result for success or failure, p.s are the chips pull out and push in, is this a delicate job?

**Kieran_Burns** · by **Kieran_Burns** » Sat Oct 16, 2004 5:12 pm

depends paul - some are some are soldered - I hope you have the former

Stupink · by **Stupink** » Sat Oct 16, 2004 5:49 pm

didnt know any were soldered, bloody ell.. wonder why they changed....

either way, be very carefull anti-static and also physically, the legs snapp off fairly easily when at the wrong angles, but you can be firm with them when they are all lined up.

**pauldarcy** · by **pauldarcy** » Sat Oct 16, 2004 10:31 pm

(ANTISTATIC) I'M DOPEY ABOUT COMPUTOR BITS CAN I ASK WHAT I NEED TO DO

**Kieran_Burns** · by **Kieran_Burns** » Sun Oct 17, 2004 12:28 am

just touch the case of your p.c. before you start to pull things apart... you simply need to ensure that you have no static build up on you... I've ONCE fried a mobo from not earthing myself... heck of a spark!

Oh and no stroking cats or brushing your feet on the floor [img]/wink.gif[/img]

**samy** · by **samy** » Sun Oct 17, 2004 2:32 am

<div class='quotetop'>(Kieran_Burns)</div><div class='quotemain'>depends paul - some are some are soldered - I hope you have the former</div>

Did you realy see an Motronic M2.7 with soldered eproms ? I never saw one till now. I would say 100% are not soldered on the Motronic M2.7 .. the m2.5 is another case.

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**V6Pete** · by **V6Pete** » Wed Oct 20, 2004 10:53 am

<div class='quotetop'>(samy)</div><div class='quotemain'><div class='quotetop'>(Kieran_Burns)</div><div class='quotemain'>depends paul - some are some are soldered - I hope you have the former</div>

Did you realy see an Motronic M2.7 with soldered eproms ? I never saw one till now. I would say 100% are not soldered on the Motronic M2.7 .. the m2.5 is another case.

_____________________________________
Greeting Samy - <a href="http://www.vmax.de" target="_blank">http://www.vmax.de</a>
<a href="http://www.vmax.de/html/evo650_c20let_vmax.jpg" target="_blank">654hp/740nm [img]/smile.gif[/img]</a></div>

I have a 1997 V6, I think its M2.8, what about that? Where is my ECU in the car? :-D

**pauldarcy** · by **pauldarcy** » Wed Oct 20, 2004 3:55 pm

it's not soldered on my mot 2.5 ECU i'm practising on!

**samy** · by **samy** » Wed Oct 20, 2004 11:31 pm

On the m2.5 you found both .. but more common is a soldered ecu in this type of ecu. I dont see much m2.8 so i cant say something about it. I opened two of them both where not soldered.

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how does the ecu come apart?

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