richard.tarlton

Hi All, I have brought a 52 plate xsara picasso 1.6sx ( petrol ), the car seems fine. But after a drive of half an hour or so, the engine hunts up and down the revs a bit when idle, and has cut out on me particulally when reversing, ( unless quite a few revs are put in to it ). I have done some research on this ( good old google ), and resolves seem to vary between MAP sensor, the lambada valve ( unlear if there is only one ) or an air leak somewhere, but dont get any hissing from engine. Any suggestions on how to troubleshoot this before buying parts would be much appreciated. Many Thanks in advance. Richards