Corolla 2.0 Diesel Bj. 2004 Problem suction lift control valves, like with the Corolla Verso. Car, went to the workshop today because the problem of the more frequently occurred. For the first time in April 2009, now last week for the 5th time. Was today in the workshop for repair. There they revealed to me that my type does not have it at all. It was changed at some point. Only what is it then. Maybe the biodiesel share in the fuel? Who can give advice.