Fuel system in 83 URQ

[Jim Jordan]

Hi,

I'm having log on problems due to changing ISP's.  However, if I understand
the question correctly, the following is from Probst's Bosch Fuel Injection:

4000S           1984-1987          KE-Jetronic
5000 Turbo      1981-1983, 1985    K-Jetronic w/Lambda
Quattro(URQ?)                      K-Jetronic w/Lambda
Coupe           1981-1984          K-Jetronic w/Lambda
Coupe           1985               KE-Jetronic
Coupe GT        1986               KE-Jetronic
Coupe GT        1987-1988          KE3-Jetronic

Probst classifies all of these as Continuous Injection Systems, CIS.
K-Jetronic controls air/fuel ratio.  Adding Lambda adds a limited mixture
control, but all controls are still "mechanical".  KE systems all mixture
compensations are made electronically using sensors inputting to the ECU.

HTH.

Cheers!

Jim Jordan

>  Message: 6
>  Date: Mon, 27 Jun 2005 18:56:20 -0400
>  From: Huw Powell <audi at humanspeakers.com>
>  Subject: Re: [urq] urq  with cyl head casting ending in A0
>  To: Ben Swann <benswann at comcast.net>
>  Cc: urq at audifans.com, "Pasqualoni, James E" 
>  <james.pasqualoni at gs.com>,
>  	michellepfeiffersx at yahoo.com, quattro at audifans.com
>  Message-ID: <42C08414.4020002 at humanspeakers.com>
>  Content-Type: text/plain; charset=us-ascii; format=flowed
>  
>  
>  > Both '83 and '84 engines that I have pulled for CGT have 
>  CIS with WUR 
>  > not CIS-E.  AFAIK head in both cases is solid lifter.  
>  Perhaps there 
>  > was a VIN break.
>  
>  Yes, apparently.  I got the CIS-E system for my '82 from an 
>  '84 coupe. 
>  And of course, all the 4kq's (start in '84) are CIS-E, 
>  right?  So they must have used up the CIS parts on the cgts.
>  
>  >> I think this may be right-IIRC the Coupe GT was a CIS-E 
>  car, whereas 
>  >> the UrQ was CIS.
>  
>  If the '83 UrQ was anything like my old '83 5kt (and I'm not 
>  saying it was), it had the same fuel system as the n/a cars. 
>   But it had sodium filled exhaust valves.  Take a quick look 
>  at the valves on those two heads and see if they are at 
>  least the same size...
>  
>  --
>  Huw Powell
>  
>  http://www.humanspeakers.com/audi
>  
>  http://www.humanthoughts.org/

-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.8.5/32 - Release Date: 6/27/2005