Hello Volvo screwdriver, I bought a Volvo V70 TDI, built in 1998, 340,000km on the clock. When I bought it, I read the start of the conveyor, because it was bad. To do this, it deleted the fault memory, because it showed an error of the radiator fan. During the transfer drive, it made a mistake from 160 km/h and the engine control light went on. After a long break, the error was gone. Then it came back again. At home read out again EFI 718 Ignition timing control Then I did the start of the conveyor and the memory is deleted again. Now it starts well. Yesterday I am on the track and again he made a mistake from 160-170 km/h. And again: EFI 718 Ignition timing control Since he always spits out this specifically depending on the speed, I first thought of the charging pressure valve until I had read out the error. What can be the problem here? Volume setting of the ESP? Wear of the pump? Needle lifting device? Static injection time? Dan no for input and advice.