Moin moin together. Be a few days I have the problem that my omi runs bad after starting. Let’s call it, it runs only on three cylinders and after a few seconds again quite normal. I changed my petrol pump about 1 1/2 weeks ago. The first days was ok. Now in the last days the engine has the problem that it runs after starting on three cylinders and a few seconds after that runs again quite normal. I noticed that when I started the ignition on I hear a quiet whistling in the engine compartment, which stops after about a second. (The whistling in the engine compartment sounds as if there are any valves coming at pressure). I try something now….. If I only try the ignition instead, I wait until the pump stops running and this whistling in the engine compartment stops, and then the car starts, it runs immediately on all four paws. If I turn off the engine again, wait a minute. a quarter of an hour. Then again. Engine started immediately without waiting, as just described, he first arranges a few overruns and runs only then and then only on three pötten and after a few seconds again on all fours. What can this be? For me this sounds like I have some problem with the forceoff pressure. Can it lie on the forceoff filter, I have still not changed it but already got it and lies in the trunk. Or is it due to the ignition. Or what I would think of, that these click-cuffs of the petrol hoses in the tank are nothing anymore. I had used the old click-cuffs again when changing the pump and could imagine that they are so emptied and that they can’t hold the pressure anymore. Greetings, Holger