Hi my Pajero sometimes idles in a funny way, almost if it wants to cut out but doesn't, it doesn't do it all the time and never does it while driving. Mainly after a long trip and when in slow traffic. I suspect dirty fuel but the pajero senses most things and would indicate fuel problems through ecu. However it could also be the mapping. with the last service the euro 4 standard emission adjustment was done and this has had an effect on my fuel consumption, uses more diesel than before the setting. Any ideas or suggestions?