Thanks, I'll just have to be patient unless something else pops up. I've gone through a couple used ones in the last couple yrs and now wondering if we may have an ECU or wiring/grounding issue. I should put the time in to trace the wiring to verify continuity,etc.I feel like either Skandix or Parts for Saabs had them recently, but in the US you can still buy the sensor itself... as long as you have tiny screwdrivers and a way of splicing wires, it's a solution. Eh, I take that back... everyone is out of stock until at least July.
I've spent the last couple of days surfing the web for a CPS. They are a series 4AV Hall effect magnetic sensor manufactured by Micro Switch USA and marketed by Honeywell globally. I'm in the process of contacting all the Honeywell distributors in Australia and so far nothing available. One distributor said the 4AV12A is no longer listed in the Master Honeywell Price List, so it may be obsolete, he goes on to say the 4AV15F, which looks the same, is listed however comes with a MOQ (minimum order quantity) of 1000, ie US$13800 for 1000 units worth US$13.80 each. Skandix in Germany has them for $185 each with a freight cost of $224.Saabits does a rebuild kit for them. Worth checking out. I've done the repair on the CPS for my 1992 2.1 car. Don't through out any used CPS assemblies as the casting that the hall sensor mounts in is very NLA. Be careful as they're easy to break.
Currently working for a well known iconic brand (think Snow regions ) in the car audio arena and they are having huge issues with electronic component supply on an international scale. Its not just supply chain issues that are covid related , apparently 2 MAJOR electonic componenet manufacturers within Asia have had large fires in the last 6 or so months impacting manufacturing to a major extent , Heres hoping that regular suppy of the hall sensor is in the future, disappointing to hear that RS no longer list , they had previously been my source....I know the 4av series is not used by just Saab's CPS's - quite a number of machines in industrial process control use them and similar hall sensors. But I guess with the p(l)andemic etc. logistics of manufacturing electronic parts is a lot trickier now. Quite a bunch of car makers are having trouble getting supplies of electronics and that's making delivery times on new cars a lot longer.