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Extra output from VEMS Audi AAN PnP ECU???

Started by ranz, January 31, 2011, 08:35:58 AM

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ranz

January 31, 2011, 08:35:58 AM Last Edit: February 28, 2011, 11:35:59 PM by mattias
On one project car, there is VEMS Audi AAN PnP ECU (Motronic connector) and it has by default only 2 outputs coming from ECU and they are already used (nitros and water/methanol injection), but I need to connect also shift light. Is it possible to get one more output from somwhere?

ranz

#1
February 05, 2011, 10:23:03 PM Last Edit: February 14, 2011, 05:27:37 PM by ranz
I´ll answer myself :)
I soldered 2 cabels from ecu to motronic unused pins and the problem should be solved, I´ll connect it tomorrow, then I´ll see does it also work :P
I used P259 outputs 6 and 7 (EC36 pin 30 and 31) and connected them on motronic pin5 and pin7 what are not used anymore, cut the cables from the loom and I have two extra outputs :)

EDIT: It woks :) also I discovered that from vems there already are some outputs what I was not awear of, not documented, on of them on motronic pin 22 (check engine light), and onother on SSC6 plug on pin1 what was supposed to be input.... wery strange...

mattias

#2
February 28, 2011, 10:20:28 PM
Is this is on a PnP ECU with Motronic connector?
You are not specific, in another thread you are talking about a regular Econoseal ECU (with Audi trigger input).

ranz

#3
February 28, 2011, 10:33:16 PM Last Edit: February 28, 2011, 10:35:23 PM by ranz
Quote from: mattias on February 28, 2011, 10:20:28 PM
Is this is on a PnP ECU with Motronic connector?
You are not specific, in another thread you are talking about a regular Econoseal ECU (with Audi trigger input).
On other topic I am also talking about PnP ecu, the one what I talked inside topic is at my own car and this is econseal ECU. I just added it to say that there I have inputs already at plug, and can they be added to that PnP ecu just taking signals from same spot where econseal plug sits on the board just like I added the outputs, because both of these ecus boards should be generally same?

mattias

#4
February 28, 2011, 11:31:37 PM Last Edit: February 28, 2011, 11:35:02 PM by mattias
Yes, for the outputs that works as long as the actual output transistor is there. With inputs you have to use patch wires to get the signals to the correct spot, and add resistors/diodes if you want pull-up and protection.

The other thread about the regular Econoseal ECU on adding inputs :
http://www.vemssupport.com/forum/index.php/topic,1599.0.html
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