hey im driving a au fairmont tickford. i ran out of fuel the other day now it wont idle when its cold once it warms up its fine but i havnt got a clue

check water level first other wise get engine check codes checked possible engine coolant temp fault clean throttle body not usally fault ouyld be possible air flow meter fault check codes first NOTE CHECK FOR AIR LEAKS

Considering it's only happened since you ran out of fuel, i'd be looking at Fuel Filter & Fuel Pump.