Is it possible to repair the "Computer" (ICU) (Marc Boucher)

[Jan Pinkowish]

Marc, 

Did you mean to write "resistance between pin 2 and 3 when NOT wide open throttle = infinite" and not the 0.2 ohms? 



Also a good time to check how far from open throttle the WOT switch engages and compare to Mr. Bentleys recommendation. 



Jan Pinkowish 

'85 4ksq 


----- Original Message -----


From: quattro-request at audifans.com 
To: quattro at audifans.com 
Sent: Friday, August 26, 2011 10:56:25 AM 
Subject: quattro Digest, Vol 94, Issue 48 

Message: 2 
Date: Fri, 26 Aug 2011 02:24:40 -0400 
From: Marc Boucher mboucher70 at hotmail.com 

Subject: Re: Is it possible to repair the "Computer" (ICU) 


<SNIP> 


Throttle switch testing performed as precursor to ECU output tests.   
Result: Resistance between pin 1 and 2 when throttle closed = 0.2 ohms 
Resistance between pin 1 and 2 when throttle opened = infinite 
Resistance between pin 2 and 3 when Wide Open Throttle = 0.2 ohms 
Resistance between pin 2 and 3 when NOT Wide Open Throttle = 0.2 ohms 
Conclusion: 
Throttle switches functioning.  Can proceed to ECU Output tests. 
<SNIP> 



Thanks Again to all for any suggestions as to what I could test or try next. 

MC