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Author Topic: Audi a6 c5 2.4 v6 m3.8.2 to m3.8.3  (Read 2937 times)
BlacuŚ
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« on: January 03, 2022, 02:44:11 AM »

Hello guys 

I was wondering if it is possible to change the ecu from 3.8.2 to 3.8.3.
Beacuse i saw m3.8.2 and m3.8.3 in audi a3 1.8 but cant find any ecu m3.8.3 in 2.4
Will it work if i put 1.8 ecu in 2.4 ?


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macxxx
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« Reply #1 on: January 03, 2022, 08:42:20 AM »

It won't work , for sure 1.8t ecus don't have hardware for 6 cylinder
If you want flashable ecu thru OBD the upgrade your engine to a drive by wire throttle , me7 ecu and engine loom etc. - like from engines code ARJ and similar
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BlacuŚ
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« Reply #2 on: January 04, 2022, 04:04:53 AM »

rather, I thought about 1.8 without turbo but I see that you may be right.
Thanks for advice
by the way, has anyone heard of m3.8.3 in 2.4 v6?
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prj
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« Reply #3 on: January 04, 2022, 04:05:38 AM »

Send that useless engine to trash... Same consumption as 2.8 with less performance...
What are you hoping to accomplish?
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BlacuŚ
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« Reply #4 on: January 04, 2022, 04:08:11 AM »

Send that useless engine to trash... Same consumption as 2.8 with less performance...
What are you hoping to accomplish?

My friend have car with that engine and he asked me to make some pops and stuff like that so I was curious if something like this can be modified to write through
 OBD
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BlacuŚ
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« Reply #5 on: January 04, 2022, 04:12:19 AM »

By the way i saw on some site info that this ecu (4B0907552D , 0261204384) can be replaced with ecu from 1.8
« Last Edit: January 04, 2022, 04:15:04 AM by BlacuŚ » Logged
prj
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« Reply #6 on: January 04, 2022, 06:15:00 AM »

So just buy a 1.8 ECU then and then realize it won't work.
V6 has twice the hall sensors, and 2 more injector outputs. I don't think the 1.8 ECU has more than 4 injector drivers etc.

Either way you can always socket the thing and flash some chips, but lol pops...
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BlacuŚ
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« Reply #7 on: January 11, 2022, 01:07:47 AM »

Okay then have to do this old way
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_nameless
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« Reply #8 on: January 11, 2022, 04:26:23 AM »

The USA market had a 2.8l 30v equipped with m5.9.2  ecu and no immobilizer.  I can't imagine the 2.4 and the 2.8 being much different aside from displacement. I've done a me7 2.4l 30v and injectors, and maf are the same as the 2.8l 30v. I can't speak for sure but I'd think the m5.9.2 ecu could run the 2 4 without a problem
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prj
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« Reply #9 on: January 12, 2022, 07:36:08 AM »

The USA market had a 2.8l 30v equipped with m5.9.2  ecu and no immobilizer.  I can't imagine the 2.4 and the 2.8 being much different aside from displacement. I've done a me7 2.4l 30v and injectors, and maf are the same as the 2.8l 30v. I can't speak for sure but I'd think the m5.9.2 ecu could run the 2 4 without a problem
I agree but for some lolpops that seems like a lot of trouble...
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BlacuŚ
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« Reply #10 on: January 22, 2022, 03:56:29 AM »

The USA market had a 2.8l 30v equipped with m5.9.2  ecu and no immobilizer.  I can't imagine the 2.4 and the 2.8 being much different aside from displacement. I've done a me7 2.4l 30v and injectors, and maf are the same as the 2.8l 30v. I can't speak for sure but I'd think the m5.9.2 ecu could run the 2 4 without a problem

thats good news but do you know the numbers of this ecu?
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