Help needed: ignition order / ignition timing ABY - AAN - ADU

**S2central.net** · 29 March 2011, 12:28

1-2-4-5-3

**S2central.net** · 29 March 2011, 12:29

thats from memory - please get a 2nd opinion

**Nuno Cristiano** · 29 March 2011, 12:45

I think 1-2-3-5-4

**Firebird69** · 29 March 2011, 12:56

ok...that is the order for AAN or ABY or both

and what is with the trigger-timing same or different?

**Dan** · 29 March 2011, 13:07

Originally posted by S2central.net

thats from memory - please get a 2nd opinion

This count?

http://www.youtube.com/watch?v=T3vx235C-DA

**UrS4boy** · 29 March 2011, 13:08

Originally posted by Firebird69

ok...that is the order for AAN or ABY or both
and what is with the trigger-timing same or different?

I think the firing order is actually cast into the head, 1-2-4-5-3.

3B, AAN, ABY and ADU all have the same firing order.

You should tell us what control unit you are using. There might be people here with that unit that could help you sort your problem.

**UrS4boy** · 29 March 2011, 13:18

AAN Technical Data

The attached should help.

Attached Files

AANTechnicalData.pdf (175.8 KB, 31 views)

**Firebird69** · 29 March 2011, 13:48

funny Video...

Well UrS4boy...the control unit is a MME (maf-map-engineering) ECU481. So if anyone is using it. I'd be very thankful.
But I'm still asking myself about the triggering...

**Jamo** · 29 March 2011, 13:49

Originally posted by Firebird69

Hi everyone...
I just finished putting an AAN together into an UrS4 and build in a free progammable control unit...
The engine ran with the old original control unit and now doesn't start and doesn't ever trigger
It got a ABY start - programm on it, so I'm guessing the the ignigion order or the trigger timing piont is diferent.

Does anyone of you know? Help....

Are you using the standard audi trigger or aftermarket like 60-2 and what ecu are you using?

The firing order is as s2central says and correct it is cast into the head, obviously for the absent minded audi mechanics!

**Firebird69** · 29 March 2011, 14:13

the trigger is still standard Audi AAN...would it be different from ABY???

**Jamo** · 29 March 2011, 14:17

Audi trigger is very complex as it's based on 3 inputs

Input Trigger/Audi Trigger - VEMS wiki www.vems.hu

http://www.vems.hu/wiki/index.php?page=InputTrigger%2FAudiTrigger

I doubt MME is configured to handle it

**Firebird69** · 29 March 2011, 14:47

oh well...I'll ask the control unit guy about it again...He said there are quiete a few running this unit in there l5 20VT
would suck if it won't work...