NefMoto > Technical > Tuning > Help to disable N231 DTC in MKIV 3.2 SWAP
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Author Topic: Help to disable N231 DTC in MKIV 3.2 SWAP  (Read 1466 times)
ibanezgomez
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« on: January 08, 2025, 07:26:40 AM »
Hi everyone, I have recently SWAPped my Golf IV 2.8 4Motion and put a 3.2 engine from an Audi TT MK1 BHE automatic into my Golf IV 2.8 4Motion.

I have fitted the original engine and made the conversion to my manual gearbox. When I started the car I saw that I had problems with the ABS as it is different in a manual and an automatic car, so I put the eeprom from the ECU of a manual Audi TT MK1 BHE (022906032FA) in my ECU.

Now I have communication with the ABS and the car feels fine. I still have one problem to solve, the Audi TT MK1 BHE has an exhaust flap valve or N231 and I have a DTC because my Golf IV 2.8 does not have this type of sport exhaust originally. This is causing me to get a fault light on the dashboard.

I'm looking for information in the forum about how to disable this DTC but I can't find the solution, I've seen this post (https://nefariousmotorsports.com/forum/index.php?topic=3899.0) that talks about the same problem in a R32 with ECU, but the memory addresses are not the same (I've checked with WinOLS).

This is valid for 022906032CN (VW Golf IV R32 Manual): 10A48 BC--->BF, but not valid for 022906032FA (Audi TT MK1 3.2 Manual)

I atthach you my current bin 022906032FA, the Golf IV R32 Manual bin and the and the definition i am trying to use.

I would like to understand and share how to find this things in the bin.

Greetings, Samuel
« Last Edit: January 08, 2025, 07:28:12 AM by ibanezgomez » Logged
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Beima
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« Reply #1 on: January 08, 2025, 07:52:38 AM »
Hi! Cool, for you. I also recently changed the 2.8 on my Volkswagen Bora. Instead of BDE I installed the BUB. I disconnected the rear lambda valves. There are still problems with the camshafts. In the future I plan to change the phase shifters from the BDE(g163/g40). there are also errors on n231. After I installed DQ250(3.6 awd), there were even more problems)
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Golf mk2 R32 FSI.        |      MPPS V21
Bora R32 (TT).              |      KESS CLON
Passat R36 FSI.            |      KTAG CLON
gremlin
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« Reply #2 on: January 08, 2025, 12:15:45 PM »
Quote from: ibanezgomez on January 08, 2025, 07:26:40 AM
This is valid for 022906032CN (VW Golf IV R32 Manual): 10A48 BC--->BF, but not valid for 022906032FA (Audi TT MK1 3.2 Manual)

For your firmware 032FA this address will be 10A18
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ibanezgomez
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« Reply #3 on: January 08, 2025, 02:24:11 PM »
Quote from: Beima on January 08, 2025, 07:52:38 AM
Hi! Cool, for you. I also recently changed the 2.8 on my Volkswagen Bora. Instead of BDE I installed the BUB. I disconnected the rear lambda valves. There are still problems with the camshafts. In the future I plan to change the phase shifters from the BDE(g163/g40). there are also errors on n231. After I installed DQ250(3.6 awd), there were even more problems)

Wow! Wich ECU and software are you using? This engine was the original plan.

Quote from: gremlin on January 08, 2025, 12:15:45 PM
For your firmware 032FA this address will be 10A18

Absolutely right! I have checked it in the BIN. How did you know it? Wich is the meaning the "BC" or "FC"? Your information will be very apreciate by the comunity  Wink

Thank you so much gremlin!
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ibanezgomez
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« Reply #4 on: January 11, 2025, 10:43:52 AM »
Please, someone can explain a little more about how to interpret this kind of values?
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Beima
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« Reply #5 on: January 12, 2025, 02:36:23 AM »
Quote from: ibanezgomez on January 08, 2025, 02:24:11 PM
Wow! Wich ECU and software are you using? This engine was the original plan.

I use wiring and ECU(022906032BK) from 2.8 BDE. firmware (micro, flash) from 022906032EG
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Don't judge strictly, I'm trying to learn at least something.
Sorry for my bad English, I'm using Google Translate
Если знаете русский, можете писать на русском

Golf mk2 R32 FSI.        |      MPPS V21
Bora R32 (TT).              |      KESS CLON
Passat R36 FSI.            |      KTAG CLON
Schumo
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« Reply #6 on: January 12, 2025, 07:14:44 AM »
Maybe this will help, BHE manual bin, with exhaust flap and secondary air pump/valve removed.
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