Don’t accept gas

Hello again I have had nothing with my Audi for a long time. but now again. if it’s so bad weather that it’s a little wet and cold, then it can be that I’m going to work and if I want to start the traffic light then he won’t hit any gas at all and then yet. In the stationary gas he runs a nice turen which can run for hours in the stationary gas while the drive doesn’t notice but only if I want to start. Is an Audi 80 Bj. 89 1.8 sport motor connoisseur chstable PM. oh yes it can be many on the exhaust that he does not get any counter pressure? if I hold the enstück then the one hissing. so is some hole. can this be the cause? what still falls in my mind the spark plugs have now over 20tkm away am again despairing. thank you already in the forearm Mfg Blade