A place for more technical discussions. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.
The padlock is the immobiliser, are you saying that is starts, gets up to temperature, then the padlock light comes on & the engine then stops? Or are you saying it fires & runs for a few seconds then stops?
The engine runs well until it gets hot. Then the immobiliser light flashes and it won’t Rev. I’ve tried to load a video.
It won’t Rev above 1000 and seems to be misfiring.
The engine runs fine when cold. When it gets to temperature the immobiliser light flashes and it won’t Rev up. It keeps running on tick over no light. When you Rev it the light flashes and and the Rev counter just bounces and the engine misfires
What you are describing sounds exactly like the classic crank sensor failure on the M13a engines (assuming yours is a hard top). You say you've already changed it but I'd recommend visiting it again. I've heard people having issues with the cheaper pattern part sensors even when new.
