ABY versus 3B Ecu pinout

[Pirvu Eugen]

Hello!
I whant to change the ecu from 3B to AAN and use the 3B loom.
I have gathered some info about this swap but i saw some diferences between the S2 Central and SJM sites.
Pins1 from ABY at 1 site is for output stage ignition coil nr.1 and at the other is for nr.3
same about the pin nr.23
Somebody knows exactly wich is wich?
And i noticed that between the 3B and ABY the RPM and Reference sensors are in the oposite pins. This is right?
Thank You verry much!
All the best!
Eugen

[4WheelDrifter]

The information I have from Tommy's site says:

Pin 1 - POS #1
Pin 2 - POS #2
Pin 20 - POS #4
Pin 21 - POS #5
Pin 23 - POS #3

HTH

[Pirvu Eugen]

This means that S2 Central is wrong.
He can corect that iff is like this.
what about the rpm and reference sensor signal?
All the best!
Eugen

[S2central.net]

My info comes from mixture of Audi literature from USA (AAN) and Europe sources. I'll check my site for typos - but there are some mistakes on the factory info.

Paul

[Pirvu Eugen]

I whanted to ask.. maibe is a diference between AAn and ABY?
Or just a mistake in the books. Anihow is not so important... We can change the pins from there iff the engine runs in 3 cilinders..
About the pins from AC? You know something? Please!
All the best!
Eugen

[Pirvu Eugen]

Sorry! I didint saw you answered allready!
Sorry!
Eugen

[4WheelDrifter]

Can anyone confirm that pin 37 is the same on the 3B/ABY/AAN/ADU? The descriptions on s2central are quite different.

Paul, could you also update the picture used for the ABY pin-out overview, the current one is the same as the 3B.

[Pirvu Eugen]

Is the same! Is swiched power throw the fuel pump relay!

[4WheelDrifter]

Thanks Eugen. We're almost there.

I'll be pretty nervous firing the engine up for the first time. Especially as I've lost my spare ECU.

[Pirvu Eugen]

Lost?
Sorry to hear this!
I think we will not start the engines for the first time in the same time!
I can try to be the guineea pig!
Iff something goes wrong... I can say to you STOP!!!
Will not hapend!
I am sure!
I have also only 1 ECU!

[4WheelDrifter]

Lost?
Sorry to hear this!
I think we will not start the engines for the first time in the same time!
I can try to be the guineea pig!
Iff something goes wrong... I can say to you STOP!!!
Will not hapend!
I am sure!
I have also only 1 ECU!

You can be the guinea pig. I like that idea.

[Pirvu Eugen]

My problem with the starting will be that i will not have a basic map for the hardware i will use.
So dont know how to. But iff will have spark and fuel...Everything is ok with the wires...no?

[Pirvu Eugen]

This means i have to be faster then you!
Hmmm! You accept this?

[4WheelDrifter]

I can't see that being a problem either.

When you see smoke coming from your glovebox, you know you have done something wrong.

I don't have a basic map either. 3B injectors/7A FPR/ADU SW could be an interesting combination for a start.

[Pirvu Eugen]

I think that the smoke will give s....it about my basic map.