How's it going everyone? So I'll get right to it I bought a E60 535xi a few months ago and replaced the solenoids in the mechatronics unit of the transmission and after a week and a half in my garage once I got it done I started having a misfire and cylinder 4 and a lean mixture on Bank two which causes the car to have a rough idle jerking motion if you get on the gas from a Dead start and feels like a misfire if you get on the gas at high RPM but if you ease into it it runs fine now the issue is is if you get on it from a dead start the check engine light will come on it'll start spitting and sputtering like it's going to stall out but it doesn't lots of power and the codes I get are misfire and cylinder 4 and lean mixture on Bank two I replaced all the plugs and ignition coils and that didn't fix the issue either I'm not sure if it's the low pressure fuel pump the high pressure pump or fuel injectors or the fuel pressure regulator sensor any help would be greatly appreciated I'll attach a picture of the codes that I'm getting thanks in advance for all you guys help.

 

Do you have a cooler thermostat running in the car? Your 304 code just may be the injector. Pumps would give random misfires.

 

Not that I'm aware of that code just popped up with it getting warmer in pa and me using the ac but I did order the injector for cylinder 4 just waiting for it to come