Putaruruguy

My 1998 alteza is200 is misfiring too I've done the air flow meter all new spark plugs compression test good air filter change full service my misfired on idle and hestitate when first going off from stop running roughly like a sack of spuds still got balls though I got tolded its maybe my fuel injection in cylinder 6 as compression test was fine in al, cylinders but 6 injecter not working