Dear All,
I'm owner of a Vectra C 1.9 TDI 8 valves,
I had to change the EGR since the engine fault light was on and accelleration was rough and inconsistentent. I managed to a have the EGR valve replaced from an official Opel service centre, but since then it seems that between 1000rpm and 2000rpm acceleration isn't full it climbs very slowly then the engine starts pushing correctly. No faults lights are on and the issue appears only on low rpm. The car has been rechecked in Opel service centre , in TECH2 no error found but they cleaned the manifold absolute pressure.
Do you have any clue about it?