u/Electronic-Command29

So as the title of this post suggests I have long cranking and almost immediate loss of rail pressure (drops to 140 psi in under 5 secs)when I shut the engine off. Also when I start the car there are slight misfires and the rpms go up and down (150-200rpm amplitude) for ~30 seconds, after that everything feels absolutely normal. I pulled the spark plugs and 2 of them look like pic 1 and the rest like Pic 2. Oil cap smells like fuel (the last oil change was 800 miles ago). No misfire codes. Should I test the injectors like in image 3? If not, what should I do? 2011 e92 335i.