Hello- I'm a proud new owner of a Volvo. It has a turbo, and about 140K miles. When cold it runs very strong. As it warms up it cruises OK but heavier throttle causes it to start cutting out, and heavier throttle shuts it off. Could a plugged fuel filter cause this? Seems like when cold it would do it also with plugged filter. Or maybe the fuel pump starts acting up when warm?