Hi everyone, I have a Saab 9-5 2.0t which cuts out whenever it feels like it! It runs great for a few days then it has a few days where it will cut out unexpectedly and mostly at speed. When it cuts out I lock the gearshift and remove the keys. Get out of the car and lock with the key and unlock. I get back into the car and it starts straight away and will run for hours. It will not start first thing in a morning unless I do the lock trick and its fine for a few hours then it cuts out later on. It has had a brand new CPS and all pipework has been checked. If anyone can help that would be great. I plugged my ELM327 cable in and used OBDwiz, PCMscan, Scanmaster ELM and nothing works. I'm not sure what protocol it is. I think all my problems may be relay related? Could I be right?