surging
Hi, I wonder if you could help me, I have a V12 XJS, it starts OK and runs on all 12 cylinders but when it is hot it surges, from 750 rpm to 1400 rpm. I tuck the air filters out and the left bank is sucking well but the right bank isn't doing anything, but it still runs on all 12 cylinders.
I would be grateful if you can help.
Regards Ian.