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Please please Don't let amateurs work on ECUs please please


Terry Posten
Old Balls
425/1000


Galant VR-4 org Post #: 849659 posted 11/14/09 06:41 PM     Remind Me!  Send Private Message   Edit Post      
Something that on the surface looks to be such an easy job can be screwed up WAY to easily.

Installing electrolytic capacitors backwards results in instant death.

Failing to top solder the caps can cause intermittent issues.

Failing to remove all the acid will lead to death.

Failing to use proper tools will cause board damage.

The list goes on and on.

For those of you that have never had the ECU out of the car, take 20 minutes and remove it and check to make sure everything has been updated. If the original caps are still installed, they will leak and it will cause failure.

Do this BEFORE you start having issues and the cost is $50 or less. Wait until you have problems and the cost is triple or higher.

If you want to know how to tell if your ECU has been working on, the two larger caps (1 is a 47uf and 1 is 100uf) will be fully seated flush on the board and have the manufacturer name of "Rubycon".

This also applies to non-turbo 6G Galants and 1G Talon/Eclipse/Laser.

This also applies to Automatic Transmission Computers.

Don't wait to long and don't cheap-out.



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Rausch Galant VR4.org Moderator
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Galant VR-4 org Post #: 849684 posted 11/14/09 07:57 PM     Remind Me!  Send Private Message   Edit Post      
Wait- you recap TCU's too? Hmmm....



Rance lives here...
Founder of Sold out to BMW Cru, then sold out there too.


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donniekak
Member ++


Galant VR-4 org Post #: 849799 posted 11/15/09 10:32 AM     Remind Me!  Send Private Message   Edit Post      
I'm pretty sure that if you looked at a mitsubishi TV made in the early 90's it's caps would be leaking.

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Terry Posten
Old Balls
425/1000


Galant VR-4 org Post #: 849810 posted 11/15/09 11:23 AM     Remind Me!  Send Private Message   Edit Post      
Quoting Rausch:

Wait- you recap TCU's too? Hmmm....




Yes, and I have been told now that someone is even making custom eprom chip programs for them (like Keydiver does for ECUs). I now have started socketing them as well.



1992 Galant VR4 click
2010 Outlander GT S-AWC Premium w/nav (wife daily)
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Hop
Unregistered


Galant VR-4 org Post #: 849969 posted 11/16/09 08:32 AM     Remind Me!  Send Private Message   Edit Post      
I re-cap boards for all the Indy locals and I've seen some horrible solder jobs by even the ECU repair places.

"Do not remove stick, will void warranty." it says. I'm surprised it ran at all like that! The last one I looked at had really, really long cap legs. The caps were bent over then super glued down to the board.

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Terry Posten
Old Balls
425/1000


Galant VR-4 org Post #: 850067 posted 11/16/09 04:21 PM     Remind Me!  Send Private Message   Edit Post      
The ones that have that sticker are the ones you have to really worry about.

I never hide my work.

And yes, I have seen the legs so long they are grounding out on the case as well. Should have listed that one.



1992 Galant VR4 click
2010 Outlander GT S-AWC Premium w/nav (wife daily)
2010 Jaguar XF Premium Luxury (my daily

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Andy_S
Overcomplicated


Galant VR-4 org Post #: 850071 posted 11/16/09 05:08 PM     Remind Me!  Send Private Message   Edit Post      
For something as delicate and requiring such attention to detail as ecu work, trust an enthusiast before anyone else. Nobody cares more about your parts than a member of the same community. Thats my thoughts at least.



I found v8's...

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stevep
Fixes ECUs


Galant VR-4 org Post #: 850600 posted 11/18/09 02:58 PM     Remind Me!  Send Private Message   Edit Post   
You can count on them being hacked up if it has a rebuild sticker or keep out labels on it.

The only think these guys are interested in is how fast they can move it to the works pile. If it fails not all of them will come back and they will just thrown another off the pile at you.

I don't want any of them coming back. It costs me and wastes my customers time and money.


Edited by stevep (11/18/09 03:02 PM)

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