Hi, I have an issue with a IS220D and I was wondering if someone with more experience about this car could give me some advice.The car suddenly loses acceleration/power when driving it for a few minutes and then the engine switches itself off. The engine then struggles to start again but eventually starts and switches itself off after a few seconds. Before the car has broken down there was white smelly bluish smoke coming out from the exhaust when accelerating. A few months back the car used to go into limp mode because the DPF was blocked and had to be forced regenerated. No warning lights are showed on the dashboard and no error codes are generated when connecting the diagnostic tool. The EGR valve had to be cleaned as it was full of black carbon and the lambda sensor has been replaced as well. The 5th injector that helps with the DPF regeneration has been replaced as well. The high pressure diesel pump has been checked and is in good working order. The car is from 2007 and has 106000 on the clock.