I've noticed more and more recently that randomly when I pull up to a stop, traffic lights or junction for example, the revs dip down quite low almost like the car is going to stall and then pick up to normal. Its normally just the one dip in revs and then it's fine but seems quite strange.
Any ideas on why that might be, what to check first?
MAF, plugs and coil pack etc are all not very old really but it is my everyday drive and I do leave it out in the rain.