[V8] 3.6 in an Audi 90

[sdewitt at stx.rr.com]

Your right, the Engine ecu doesn't require the engine ecu, however the
trans ecm requires the engine ecu. What is interesting is why the V8
5spd ecu is a different part no than the auto ecu.

----- Original Message -----
From: DasWolfen at aol.com
Date: Wednesday, May 11, 2005 11:10 am
Subject: Re: [V8] 3.6 in an Audi 90

> 
> In a message dated 5/11/05 11:46:00 A.M. Eastern Daylight Time,  
> jward.v8 at gmail.com writes:
> 
> One  thought he had was that the ECU is expecting a signal from the
> TCU, but it  is not installed now that the car is a 5spd.  I asked him
> to follow  Scott's instructions to blink the trouble codes and am
> waiting to hear what  he says.
> 
> 
> The 3.6 Motronic doesn't receive any signals from the TCU. Pin 3 
> of  the 
> Motronic gives the ground to trigger the fuel pump relay only when 
> the  ignition 
> is on. If this isn't happening then he doesn't have all the ground 
> and  power 
> supply connections made to the Motronic.
> 
>  It also explains the no spark condition since the Motronic isnt  
> trying to 
> trigger the coils...or the injectors...and so forth and so on.
> 
> I just did this swap into a 1990 200q, I missed a switched power  
> connection 
> on my first attempt.
> 
> I can't give pinout information since I integrated the 14pin 
> coastal  
> connections into the 200's harness to aid later troubleshooting.
> 
> 
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