ABF IDLE VALVE COMPONENT TEST

Hi all,

For those that can remember I have been building a ABF Mk1 cabrio in mars red.
I now have it running and engaging gears.

I still have a single issue.  It will not idle correctly. Or won't idle at all unless foot is on the pedal.

I would like to know if anyone can tell me how to component test the Idle Stabilization Valve.
A new one is £300 so I think it would be best to confirm before just buying new stuff.

Also it is refusing to scan hence I can't just check via the ecu.

Cheers Denis 

Elaswin ISV test requires that diagnostics are working unfortunately! I take it the isv buzzes/hums with ignition on?

ABF are really picky about the isv, I tried 4 before I found one that worked!

If you can you get the car to me at some point, i will sort the diagnostics out for you

Even after all this time
you are to rescue my car and my sanity

Yeah it did used to hum after the ignition had been on for a few secs.
I changed it and now it dosnt hum but still won't idle without pedal even if you warm it up for 5 mins or so.

I will be double checking all possible air leaks and vacuum connections as well.

Ill take you up on the offer at some point. hopefully I can drive it to you as opposed to getting it piggybacked!!

ok if it doesnt hum then its either bust or you have lost the ignition feed to it, check the black wire this should have ignition live