The car started going into limp mode. We replaced the turbo cartridge, the N-75 and still was in limp. Towed it to the dealer and they replaced the boost feed line. Probably the original cause of the limp. Now it runs fine until the engine gets hot and it goes back into limp. Dealer wants to replace the turbo/actuator. I think they are chasing problems with parts. Youtube suggested a replacement of the boost feed line sensor. I haven't tried that yet but why would it go into limp at operating temperatures? Thanks for any help.