audi a3 1.8 t 150 starts up fine but doesnt rev
 

audi a3 1.8 t 150 2001 plate
starts up first time but does not rev i have no response when i put my foot on the throttle. the problem came when i booted it a bit. then i went to pull of from traffic lights reving engine then my throttle died it now ticks over but got no revs ive changed the foot peddle