Question for the ECU Gurus (Damaed ECU while installing chip)

neap38

neap38

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Hello, Just wondering if anyone can help.

I was trying to install a performance chip on my ECU (AUG) and I have made a right mess of it.
Once I installed it, the car would turn over but wouldn't start.
I decided id remove the performance chip and replace it with the cars original. In doing so, I have damaged the circuit board by pulling off 2 of the copper rails.



Am I right in thinking that the ECU is now ready for the bin or is there any specialists that could put this right without forking out shed loads of money?

I have already been looking at replacement ECUs on Ebay and am I right in thinking that the Immobiliser on the replacement ECU has to be turned off using VAGCOM software to make it work on my car? Is this difficult to do?

I have also been interested and been reading up on how the newer style ECUs can have coding added to allow for an AntiLag function... could I hit two birds with one stone and install the newer style ECU so later on I can have the AntiLag installed?


What would be my best option?

Thank you in advance for your help.
 
Without looking at it I would say it's probably a bin job. The way to do these is to remove the original chip with a proper desoldering tool , socket the board then put the new chip in. Any issues and you can just swap chips around in a matter of seconds.
Not sure about the antilag thing If I was you I would settle for a running car at the moment.
Immobiliser can be defeated on the ECU's with VAG TACHO or VAG commander .

Karl.
 
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Thank you for the quick replies. I will start looking for a replacement ECU as I'm pretty stuck without a car.

For the replacement ECU... apart from finding one from a AGU engine, should I be looking for any other specifics to match it up to my car?
 
It'll be fixable but would take time and probably hit and miss success. Used to repair this kind of stuff every day and its do able with the right kit and lots of patience. can you post some pictures?
 
20140305 214817
 
Looking at the state of the picture, I would be very surprised if it was worth fixing. Ive done a good job on that one lol.
 
Quick look shows 3 or 4 bad pads, possibly more, they can be replaced and the track traced back and replaced with some thin wire
 
lol4fun said:
Quick look shows 3 or 4 bad pads, possibly more, they can be replaced and the track traced back and replaced with some thin wire
Click to expand...

Would having that done be quite labour intensive?

I'm unsure weather I should go down the route of finding someone that could possibly fix this for me (I wouldn't know where to start looking for that person) or if I should go through the hassle of buying a replacement, having it delivered and removing the immobiliser?
 
Thank you, you have been extremely helpful. I have one last question... If I was to buy a replacement ECU, would it just have to be of a matching AGU engine... or should I be looking out for other specs to make it "plug and play" after the immobiliser has been switched off?
 
That ECU looks beyond help TBH. I used to repair stuff to component level and also worked on surface mount stuff and you can see two tracks that have lifted along with the pads probably. It's the other damage to through hole plates that you can't see and on a multi layer board this can cause all kinds of issues.
 
I would be happy to attempt a fix on that ecu, i cant see too much bad damage there, pics not too clear.
I could probably find you a replacement too, or if you find a replacement and send me both i could clone your original ecu and fit the chip.

Doesnt look anywhere near as bad as a polo i fixed a few weeks back. Where abouts are you? photo of the numbers on the ecu?

EDIT: Just saw tracks lifted, hmmm maybe not then. But i could still clone the immo data to a new ecu, or just code in a replacement if your anywhere im headed in the next few days.
 
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Am I right in thinking that any ECU from an AUG engine will be a straight swap plus sorting out the immobiliser issue? Or is there more to it than that?

Kind regards,
Adam.
 
And I'm located in South east London. Often working in SW postcodes
 
There are two types of AGU ECU if I recall correctly...early ones aren't flashable but later ones are...

Ideally you need to get one the same number as yours... shouldn't be difficult seeing as there are loads being broken...

What year is your car?

<tuffty/>
 
<tuffty/> said:
There are two types of AGU ECU if I recall correctly...early ones aren't flashable but later ones are...

Ideally you need to get one the same number as yours... shouldn't be difficult seeing as there are loads being broken...

What year is your car?

<tuffty/>
Click to expand...

My car is an 1998. Ive seen a ECU for another 1998 AGU up for sale at an appealing price and i'm wondering if I should buy it before it goes
 
If you get it i may be able to code it in saturday as im heading south. Of post both ecus to me and ill clone them if nobody is local
 
My ECU is 06A 906 018 AQ

Would an ECU with 06A 906 018 R work?

@udi A3 I will PM you later today.
 
R will be fine. And iirc it's a flashable unit so no need to dive inside with the soldering iron.............
 
Don't mean to hijack but I have an early agu car and want it remapped but have been told they can't flash the chip on a me3.8 ecu, what do I need to get or replace so it can be done via the obd socket? And how can I check its good to go?
 
I can replace ecu chips. Im not too clued up on whats needed though.

Id just do what im asked to do, chip off chip on. Immo defeat if required or again, clone the data from old ecu immo.
 
lol4fun said:
Don't mean to hijack but I have an early agu car and want it remapped but have been told they can't flash the chip on a me3.8 ecu, what do I need to get or replace so it can be done via the obd socket? And how can I check its good to go?
Click to expand...

Depends, there are two types. The one the OP has posted is flashable. I'd need the ECU part number to check. I can remap it regardless though.

Rick
 
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