[shakmonster]

Hello, all it's been around five months since I last drove my f30. It stopped working after I replaced the valve cover. I tried many different solutions like a new vacuum pump battery recharge I checked all connections. I also replaced the high-pressure fuel pump with the newer version I got the car to start but it immediately stopped and back to square one of it not turning over. I'm starting to think it could be the Valvetronic actuator. Any tips/help would be appreciated I really don't want to junk or replace the engine.

[LA1Z24]

An N55 will fail to run if the valve cover gasket isn't properly sealed. It will start and stall if the gasket is rolled.

[shakmonster]

I double-checked the gasket and it hasn't been rolled. I was very careful when installing it.

[LA1Z24]

Did you physically remove the cover again to check or are you assuming it did not roll? The only way to know, is to remove it carefully. This is a very common issue after someone DIYs the valve cover gasket...start and stall...and its caused by a rolled gasket most of the time.

[thejeremyman9]

Codes?

[shakmonster]

The codes I'm getting from my scanner are
P15D9
C266F
C2520
C2172
P3100
C2B20
C216E
P2042
C2100
C0C65
P2E00
P002E
C342D
P15F8

[shakmonster]

Yes, I checked by raising it slowly and found no signs of it being rolled and I had checked it twice.

[shakmonster]

Update: I got a better scanner that reads BMW-specific codes I reset all the codes and turned the ignition on and finally after months it turned over but it shut off after 5 seconds or less. The codes before I cleared it was telling me that there's a short in the circuit for the Valvetronic actuator, wastegate, and map sensor but after clearing it I'm getting codes:140301,140310.140401.140410
These codes are misfires in cylinders 3 and 4 and it's telling me both cylinders' fuel injection is cut out.
I know it's not the spark plugs or ignition coils since I replaced it about 10k miles ago.

[thejeremyman9]

Originally Posted by shakmonster

Update: I got a better scanner that reads BMW-specific codes I reset all the codes and turned the ignition on and finally after months it turned over but it shut off after 5 seconds or less. The codes before I cleared it was telling me that there's a short in the circuit for the Valvetronic actuator, wastegate, and map sensor but after clearing it I'm getting codes:140301,140310.140401.140410
These codes are misfires in cylinders 3 and 4 and it's telling me both cylinders' fuel injection is cut out.
I know it's not the spark plugs or ignition coils since I replaced it about 10k miles ago.

How do you know if its been 10k miles and many months?

Swap plugs and/or coils from 3-4 to 1-2 and see if the problem follows the plugs/coils.

[shakmonster]

I know since I replaced them myself and other parts I can rule them out but I just found out that I had swapped the coil pack wires for 3 and 4 and that's why it had been misfiring. Never thought it would have been that.