I took my plus 4 out yesterday and for some reason it’s developed a slightly fast idle. Normally it would tick over about 800 - 900 rpm but it’s now settled at about 1050 rpm. I can’t see any means of adjusting it so I’m wondering if it’s some sensor starting to fail? The cars is a 1994 plus 4 with the Rover T16 engine. Any thoughts?
Thanks
