Thanks for your reply, I didn't realise he'd gone :/
I'd seen this thread by chance and jumped on it hoping there would be some photos of the onward journey of the cable. I appreciate the PDF but it's always nice to have photos
Also, he said it's bank 1 sensor 1, which is the same as mine, but his appears to be on the very opposite side of the engine to mine... the photos above are on the left side (UK off-side) but my sensor (bank 1 sensor 1), I believe, is on the right side (UK near-side).
I've got an air filter on order right now (I actually bought
one a couple of weeks ago thinking they were supplied in a pair due to the photos on LLParts and the price of them
but I had to order another when just a single one arrived), so on a sunny weekend, I intend to change them and take that opportunity to have a look at accessing the Lambda sensor (and the plug-end) when I do that job.
(Oh, and I've corrected the location of the sensor, which is bank 1 sensor 1.)