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Ended up with an ECU which I believe is the one that was sold here
Definitely look like MTM chips (their labels were always handwritten and the handwriting looks familiar).
The "T" marked on the "Key" chip (which by the way better be in a "daughter" (key) board or the set won't work, is meant to mean "Top" (board) not "turbo". The other chip marked "LDR" is the boost chip and should be on the bottom board with a 3.0 Bar (300 kPa) MAP sensor.
More MTM chip info, soon to be updated with your Stage 3 photo:
The Audi Enthusiast website. Forums for all Audis including A4, S4, A5, S5, A6, S6, allroad, A8, S8, TT, R8, Q5, Q7, 4000, 100, 200, v6, v8, vintage, local forums
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
So these look likely to require a full RS2 setup. Ie Injectors EM and Turbo, also possibly the fuel pump I suppose.
The whole injector question is my concern as they were sold as for use with standard injectors. But would MTM issue 350 PS chips for standard injectors?
Cheers for the link, great info. So these look likely to require a full RS2 setup. Ie Injectors EM and Turbo, also possibly the fuel pump I suppose.
To run those chips on an AAN or ABY *OR* ADU you should have:
1. RS2 or equivalent exhaust manifold
2. 3 Bar MAP sensor in the ECU
3. RS2 green-top injectors or equivalent
4. RS2 Turbo or equivalent
Optional:
1. RS2 MAF (stock AAN or ABY will likeLy work fine)
2. Upgraded fuel pump. Stock FP will be fine (just) if in good shape. 044 would be an upgrade and give you more "headroom" for future improvements.
Not sure about the fuel pressure regulator (FPR).
If the chips were written for an S2 ABY then you are fine with the stock ABY 4 Bar FPR. However, if the chips were written for an RS2 ADU, you might have to go to a RS2 3.8 Bar FPR.
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The ECU has a 3bar map sensor fitted so happy days. I also have a pile of RS2 parts that will suit this so will report back on how I get on in the next few weeks.
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