[MattBennett]

Wat car you got mate?

 

[MattBennett]

What engine mate? 4 door 5 door? As much info as possible please, will help people help you a lot more!

 

[MattBennett]

Some of the VAG engines have drive by wire, throttle sensors basically on the accelerator pedal. These tell the ecu in what position the throttle pedal is in and hence making the car go. Might be wrong, but obviously if the sensor is not working properly then it could cause the problem you describe!

Sure some one will be along to correct me!