check the position of the cas on the inside it could be slightly off check where it locates on the cam shaft and just make sure all the plugs are clean and pushed on properly on the injector loom
there should be a half moon key on the cas and on the cam shaft make sure they are lined um properly when re installing the cas or it will cause the car to run like crap or not even start at all and if you snapped it off you just have to try to locate it slowly to make sure its in the right place