Engine running on after ignition switch off

[Matt200T]

I have a 1982 2.0 petrol engine car (200T). When I switch off the ignition the engine runs on for a few seconds and finally comes to a stop - usually shaking the car a little.

Does anyone have any idea what would cause this problem and how to remedy it?

 

[Matt200T]

Sorry - my mistake. I'll report in the Engine forum