318i stalling problem

I have just bouhgt a 1991 318i auto cheap. It has a problem that when you accelerate from stationary, it wants to stall and looses power.

Does anyone have an idea of what it could be?? Dave

Hi again, I forgot to say that it only does this after filling up, and is fine the day after.

fill it up 3/4 tank?

It will play up if i put 1/2 tank or wateva!!

I have been told that my Air flow meter my be knackered. Does anyone have one for sale in the UK for a 318i E36?

Dave!