I am looking for advice on how to proceed if I want to upgrade the ECU on my S2 3B ECU?
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3B ECU Modification
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By only upgrading the distributor to coils, you won't get any single HP more out of your engine.
The problem at 3B's ECU ist the 200 kPa MAP-Sensor. Without changing it, you are extremely limited.
'95 Audi S2 Avant
'92 Audi Coupe T89 quattro 2.3E
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You have to solder in a MAP sensor from ABY's ECU (250 kPa = 1.5 bar above atmosphere).
It's the black "box" with the hose.
After that you can change your EEPROM's ("chips") and get 260 - 280 HP out of it, depending on which software you buy (software for ABY or ADU doesn't work without changing some other hardware!!)You do not have permission to view this gallery.
This gallery has 1 photos.'95 Audi S2 Avant
'92 Audi Coupe T89 quattro 2.3E
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Software for ABY/ADU won't work without changing the ECU lol.
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