hi everyone, ive recently brought a 1.4s and im havin a little trouble when i first start it it idles well but after 30 seconds or so the revs drop and it starts pulsing like its fighting with its self to stay running. it drives fine not missing at all its just on idle, ive read some old posts so ive cleaned out the tb and the breather pipe which were both full of crap and it does respond a lot better but still has the fault it only started to do this after changing the timing belt and tentioners and also the water pump but ive checked the timing 3 times since and its still bang on, so im still scratching my head! any help pointing me in the right direction would be gratefully recieved cheers tony