[HarryD]

Still thinking CSV. You have reported the components appear to be functional.

As a test, you can pull the wire to the CSV, attach your voltmeter between the lead and ground and with the car cold, crank the engine and see if you have power to the CSV.

I would advise NOT messing with the CIS until you have ensured all other systems are functional.

OLD SAYING:
“There are 3 types of CIS Owners:
1) The guys with working CIS systems are probably out driving their cars so they won't reply.
2) The guys that tinker with their CIS systems and have them royally screwed up will keep you running in circles with suggestions.
3) The guys that have spent a fortune on Webers will tell you they're great to justify their expenditure to themselves.

Your choice.”