NefMoto

Hi All,

I have a MK1 Golf GTI and am going to install a 1.8T from an 2001 Audi A3 (AUM) 1.8T.

I have bought a lightly damaged but complete A3 with keys (it is a running vehicle).

I found this site about a month ago but only recently signed up now that I have secured a donor car for my swap.  I'm really enjoying reading through the topics regarding ME7.5 and so far I have gained a lot from this forum / site.

My plan is to install the engine, gearbox + shifter mechanism, ECU + loom into my Golf over the course of 2013.  Initially I want to disable the immo while the ECU is still in the A3 so that I can verify that it is successful (I will disconnect the cluster to test) while still in the vehicle it was designed for and eliminate any other variables when I come to start it for the first time in my MK1 Golf.  Once it's running without the immo I'd like to then remove any unnecessary emissions associated systems from the AUM and also remove these from the ECU.  After that I will be on the quest for more power but there is plenty of time for that!

I don't want to use the A3 cluster or keys in the MK1 but hopefully by having them it will make the swap a bit easier and make the immo off more straight forward.

I plan to put questions up here as I come across various issues throughout the swap.  I don't have any questions yet as I want to make sure I have read as much as possible without asking the usual n00b questions that can frustrate regulars on the forum.  Not doubt there will be many to come but I just wanted to give a bit of background on what I am trying to achieve in the meantime.

Where do you come from?

New Zealand.

Donor car arrives tomorrow  ;D

Audi A3 donor car has arrived.  It drives but has a damaged radiator so unfortunately I won't be able to give it a good road test before remiving the engine and gearbox.

By next week I should have a VCDS cable and will work on the immo defeat.

Finally some progress has been made!

VCDS cable arrived today.  Scanned the A3 for fault codes and there were a few.  Primarily these were due to the battery being completely dead (not even a light on the dashboard) when I picked the car up.  Since then I've replaced the battery with a known good one and its been fine ever since.  I've cleared the codes and will see if they come back.

VCDS wouldn't work with ME7_95040 (probably due to not switching off "Intelligent Mode" but I had a generic OBD cable which had some sucess on first attempt.  After changing to COM Port 2 I was able to complete a good read and save it to file (attached).  v1.40 wouldn't read over OBD so I used v1.31 which went without a hitch.

ECU is 06A 906 032 FE.

i switched off this file for you.

Many thanks.  I downloaded a hex editor last night.  Will be interesting to see if my file is the same as yours!  :)

thanks to click applaud :)

Here is my own immo off file.  It looks to be the same as gregor10 added.

Can anybody veryify that this is correct?

Also, I plan to wire in the connection for the A3 cluster in the glovebox area of the Golf and use it occasionally but not as a permanent fixture.  Given that the A3 key won't be used is there anything I need to code in the cluster or ECU so that I don't get DTCs for the key not matching the cluster?

Another question.

My engine is an AUM which has a K03s and 150bhp.  Physically this is identical to the AUQ engine which is also a K03s but has 180bhp.  From my research the only difference between these two "engines" is the ECU map.  Is it possible for me to use an OEM AUQ map on my AUM ECU?  Both engines are DBW, VVT and a 9.5:1 compression ratio.  Furthermore if that is possible could I also use the 190bhp map from a BEX engine (also K03s, DBW, VVT and 9.5:1 however it is from a longitudinal application (A4) and also has twin intercoolers).  The BEX is the highest output OEM 1.8T with a K03s that I know of.

If all of this is possible I'll then use the higher output map as a base to then delete SAI, EGR and so on.

I wrote the 95040 file back to the ECU tonight and it was successfully verified.

The immobiliser light still comes on - is that normal?

Yes, but you wont use this dash in a mk1 so doesnt matter.

After fitting a 710N DV I ran some logs with VCDS and found that the boost is bang on for a standard 150bhp AUM at approximately 8.5psi.

I'd like to try an OEM map from a 180bhp AUG (there are a few to choose from on this forum).  How do I know if they will work with my 06A 906 032 FE?

I used NefMoto to read the ECU today.  How do I know which memory layout to use?

I've read here: http://nefariousmotorsports.com/wiki/index.php?title=NefMoto_ECU_Flashing_Software but my specific part number 06A906032FE isn't listed.  I've also read a few other topics but can't find a definitive answer.

Both 29F800 and 29F800BB worked (files attached).  Do these files look OK?  I want to make a good copy of the OEM file before making any changes.

As mentioned above I want write a map from a AUQ ECU (180bhp).  There are several available on this site.  Is there a particular file that I need or will any of them work?

Thanks

Some further info.  The Bosch part number of the ECU is 0261207205.

This site http://www.rtcsport.com/ListaEcu.html mentions as per below 29F800 (without the BB) so can I safely assume that it is that?

AUDI A3 1800 20V TURBO ME7 FLASH_0029 1037354890 0261207205 29F800 97EC

With that in mind can I use a .bin from any AUQ with a Memory Layout of ME7 AM29F800 as per this page: http://nefariousmotorsports.com/wiki/index.php?title=NefMoto_ECU_Flashing_Software  Eg do I just need to make sure that the part number of the 'donor' AUQ ECU matches one of the Tested ECUs with a layout of ME7 AM29F800?

Lastely, do I need a .bin from a manual gearbox car or are the files the same between manual and automatic transmissions?

Open the ecu, take a look at the flash chip. The memory layout is etched right onto the top of it.

As for cross flashing ecu numbers, it isn't generally advised. There are a few tried and true combinations, but there are also those that end up with issues. If you're going to do it make sure the following matches:

EGT sensors-did the donor have egt's? How about the new flash?
VVT-same question
Wideband lambda vs narrowband lambda?

BTW-the vag number may be more helpful when referencing flashes (IE 4b0906018m) as opposed to the bosch number you listed.

Thanks for that.  I have reinstalled the ECU back in the car now.  However I do have photos.  There is a sticker on the chip but none of the numbers on there match any of the memory layout labels within NefMoto.  Perhaps its under the sticker?

My AUM and the AUQ engines are physically identical in every way - all the sensors etc are the same, wiring looms are interchangable, etc.  The only difference between the two is the ECU (and that AUM = 150bhp and AUQ = 180bhp).  Is it still a bad idea?

VAG number is 06A906032FE and Bosch number is 0261207205.  I found the info in the prevous post by googling the Bosch number.

The chip ID is etched into the chip itself, under the white paper sticker. I'm pretty sure it'll be 29f800bb-70se. As long as you're sure the ecu hardware is the same, go for it. You obviously have bootmode figured out, so the worst case scenario is a no start which you can easily rectify. Just do a vag-com scan afterwards to make sure there are no errors as a result.

Cool, again, thanks for your help.  Digging around the photos I have of the ECU I found this one and cropped it in an attempt to make it easier to read.  The sticker covers the majority of the letters but what I think is the top of the letters still shows.

Assuming the memory layout etching you mentioned is upside down in relation to the sticker then this looks like a 29F800BB.  The shape of the tops of the last two characters looks like BB to me.

Do you agree or do I need to remove and open the ECU again to verify?

After doing some further reading I came to the conclusion that attempting a write with the wrong memory layout would fail and that would give me the answer.

I decided to use the file from this topic http://nefariousmotorsports.com/forum/index.php?topic=820.0title= and attempt to write it to my 06A906032FE ECU which I can now confirm has the 29F800BB memory layout.  It worked without a problem.  My A3 now thinks its a TT and has improved performance to match.

Originally VCDS reported the ECU to be:

Address 01: Engine        Labels: 06A-906-032-AUM.lbl
   Part No: 06A 906 032 FE
   Component: 1.8L R4/5VT         0002 
   Coding: 04500
   Shop #: WSC 06435 
   VCID: 66C94C44027A6328BB0


Now it shows as:

Address 01: Engine        Labels: 06A-906-032-AJQ.lbl
   Part No: 8N0 906 018 AP
   Component: 1.8L R4/5VT         0003 
   Coding: 04500
   Shop #: WSC 00000 
   VCID: 7F07F9207DE0D2E0586

The part I found interesting is that the topic when I downloaded the file from says its for an AUM engined car.  VCDS above says its for an AJQ engined car which is esentially the same engine however with a K03 instead of a K03s.  That leads me to believe that there is still more pertformance potential due to my car being fitted with a K03s.

Furthermore what is more interesting is that I have used a .bin file from a different engine code to an ECU with a different part number and I don't appear to have had any issues.  From some other posts I have read this type of cross pollination is not recommended - did I just get lucky?

Great project, I'm on here seaking similar advise for a 2001 AMU from a TT 225 swap into a '85 GTI.  Good luck!

Thanks!  A MK2 should be a more straight forward process.  Not sure if an 85 will have the CE1 or CE2 fusebox but either will be simpler than my S1 fusebox.  I'm currently rewiring the whole car to upgrade it to CE1 as the S1 is a nightmare for trying to run a ME7.5 1.8T!

Long overdue for an update to this post!

The current 8v engine in the car blew the head gasket late last year and I decided to repair that before making the jump from S1 to CE1.

It took a few days over the Christmas break but I successfully made the transition to CE1.  I bought an entire loom from a MK1 Cab and changed everything except for the rear loom which only required a re-pin and the later style connector.  There are still a couple of minor jobs to do but it was mostly a smooth and easy process.

I'm hoping to do some more work on the donor car before the end of summer, time permitting.

upload your orig

Time for another update!

Progress has obviously been quite slow.  However the AUM and 02J is now mounted in the car and the job of wiring it all up is about to start.

The engine no longer has SAI and I won't be using EVAP so I have been researching how to code those out.  I've found a definition file on here for an ECU with a slightly different suffix but it appears to be the same in terms of viewing the data.  Once I have verified that I'll make a bin with the SAI and EVAP deleted.  Not sure if I need to do anything in the ECU given I'm not running PS or AC but will see what happens.

Before removing the engine from the donor car I remapped it back to standard.  I suspect that the outgoing engine was about 150bhp so it will be interesting to make a comparison once this is finally running.

Will try and post updates more often as I'd like to have it running this year!