Am having a horrible time after replacing turbo and exhaust after they blew, the car just wont run right Renault dealer replaced the timing belt 3 years ago but the guy doing my car recons its setup is all wrong (i do trust this guy on deisel engine's he is very good) before turbo blew when you started up sometimes a woosh of white diesel smoke and switching off very juddry not smooth i tried all kinds but just figured its the car. The problem now is if he sets the timing right (the car sounds much better as if its right) but service light and injection light comes on and car drops into safe mode, go back to renault timing settings service light and injection light (wv) go out. Do Renault programe there timing settigs into ecu ??? could that be the problem.