2.5 v6 diesel has been running fine then today it cut out , it could be started but as soon as you reved it , it cut out and so was tottaly undriveable , towed it to my garage and he hooked it up and it came up with 01318 ecu injection pump j399 comms intermitent, 18259 canbus powertrain missing message inttermitent and 00596 data line faulty intermittent. now it runs fine again after clearing the codes but obviously something isnt right and now I dont trust the car!! any ideas anyone ?????