[s-cars] Intermittent no start

[Theodore Chen]

tony,

i'm looking at replacing the CPS as a prophylactic measure when i
replace the timing belt.  so i'd want to use a new part rather than
a part that's older than the one in my '92.  we were hoping to find
out whether there was an alternate part that could be obtained new
for less than the OEM part.

http://www.geocities.com/fwarner_au/mc_things/bmwr_ign_sensor.html

this seems to imply that the 2AV54 is a replacement the HKZ101.

i also found a reference that says the HKZ121 supersedes the HKZ101.

do these have the same form factor?

--- Tony Curran <tony.curran at sympatico.ca> wrote:

> Hi Dave, all,
> 
> First, I was able to remove my CPS without removing front of car as I've
> done the Monster Air Intake mod that removes the stock air intake snorkel -
> a 24mm socket fits right in the space left behind once the cam belt cover is
> removed.
> 
> The original Bosch Hall sender device (HKZ101) is now out of manufacture. I
> had started to investigate an alterate part (part no. 2AV54) but have not
> progressed. But I did find the HKZ101 is used in Volvo distributors of the
> mid-80s (probably Audis too). I actuall bought a 1988 Bosch Volvo
> distributor from a Euro car wrecker in Ottawa for c$50, then transplanted
> the Hall sender to the S-car CPS mount plate and spliced wiring. Has worked
> floorlessly for about 10 months now.
> 
> A quick look at Ebay shows this Audi distributor very much like the Volvo
> one I took apart...
> 
> http://cgi.ebay.ca/AUDI-200-500-QUATTRO-IGNITION-DISTRIBUTOR-84-91_W0QQitemZ
> 8040347834QQcategoryZ33690QQrdZ1QQcmdZViewItem
> 
> The three snipped wires hanging at bottom of pic are the wires for the hall
> sender.
> 
> Good luck,
> 
> Tony
> 96 S6
> 
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Dave Forgie
> Sent: February 22, 2006 1:34 AM
> To: s-car-list at audifans.com
> Subject: [s-cars] Intermittent no start
> 
> 
> Tom and Ron:  I recently helped a young S-car owner who lives north of
> Toronto (Jonathan S) who had the same problem.  I pointed him to Scott
> Mockry's website (www.sjmautotechik.com) and the diagnoses section to
> get him to pull the codes. He pulled the classic 2113 CPS code and was
> able to get a new CPS wholesale through a friend.  He has some skills
> and was able to change the CPS without replacing the timing belt.  I got
> Jonathan to do a write-up.  You can find this at:
> 
>  http://forums.audiworld.com/s4s6/msgs/107930.phtml
> 
> I personally suggest that the CPS will fail anytime after about 160,000
> km (100,000 miles) and on that basis it should be changed at or before
> the second timing belt change (assuming an 80,000 km change interval).
> However, if Jonathan can make the change without the timing belt coming
> off, that suggestion may change.
> 
> What we need is an answer to Teddy's question.  Tony Curran - what have
> you found out? Any updates?
> 
> Dave F.
> 
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