Hi I have bought a saab 9-5 1.9 tid 59 plate from a guy who didnt tell me about a problem it has. It goes into limp mode once the car has warmed up but but not all the time, it drives great with full power but when I have to stop for fuel etc then re start it, it goes into limp mode and only revs to 2 thousand. The car has been re-maped to a stage 1 and has had an egr delete with the blanking plates in. It shows no fault codes and no lights come on. Any help will be appreciated. I drove from fife to dover so cant be the dpf as it had a good blow out.