my 86 vw has a rough idle bouncing between 10rpm to 5rpm than it will stall. to get it running you have to get it running rich and youre able to drive it with a steady foot on the gas and the brake while coming to a stop , if not it will stall. i have replaced the head gasket the spark plug wires plugs cap and roto had the head milled and new gaskets put on . timing might be slighty off . but i cant figure out why iits running like this . the fuel pump works the filter has been replaced and so have the fuel injectors. what else could be making it runt like this anyone if you can help that would be great its a 1.8l cis system