Managed to get an earth lead from work. £15 not bad for genuine.
The idling issues look like a faulty hose, cabling and/or AAV. Found a chaffed pipe and two broken wires.
I can fix the wires but not sure about sourcing the hose or AAV.
So fixed the plug and have 11.6v at the plug end. I ran this test that I got from this forum.
Detaching the electrical plug,running the engine (when cold) then pinch the air intact duct to aav hose, the idle speed should drop.
Then repeat the test when the engine is at normal operating temp, (replace the electrical plug),
pinch the hose, the idle speed should remain unaltered.
Both tests work as advertised.
So only problem remaining now is it idles around 900rpm when cold which is ok but once driven a while it fluctuates. See if I can post a video. It's hunting... Not sure what causes that.
https://youtube.com/shorts/bl76g1S00Uw?feature=share
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