Check Engine Light

[Doug Yoder]

Denis wrote:

> Well now i m trying to add that check engine light to  my 200T 1989 now.
> I when to http://www.sjmautotechnik.com/trouble_shooting/ecuf_MC2.html#led
> 
> But i DONT have the blue connector!!
> 
> I dont want to tap the computer connector to wire it.
> Another tthing is missing on Audi.
> 
> Ðenis
> 

Do you have the Bentley manual for the 100/200?  Look at page D2-20-1, 
it has how to connect the LED for cars with only two connectors.  I'll 
try to "draw" it here (sorry, I don't have a scanner):

/--\  +--\
|A1|  |B1|
|  |  |  |
|A2|  |B2|
+--+  +--/

Connector A is listed as "dark" and B is supposed to be "light".  B1 is 
not connected to anything in the wiring harness.

Put the LED + resistor between A1 and B2.  Then put a wire with 
push-button switch between A2 and B2.  Activating the switch is the same 
as putting a fuse in the top of the fuel pump relay.  IE, push the 
switch for 4 seconds, and the LED starts blinking the fault codes.

Good luck!

-Doug Yoder

-- 
*------------------*--------------------*------------------------------*
|    Doug Yoder    |   wdy at zordok.net   |    http://www.zordok.net/    |
*------------------*--------------------*------------------------------*
|  Don't tell me the sky's the limit...                                |
|                                  ...there's footprints on the moon.  |
*----------------------------------------------------------------------*