HELP BMW M3 Cranks but WONT start

[m3.mar]

Thanks in advance for the help, I recently discovered a problem with my car..

Upon arriving to A car Culture meet here in Houston, TX My car suddenly turned off with check engine light on. Mind you I have gotten both my throttle actuators and rod bearings done already currently only have 87k mi

The Car cranks but wont start , am having misfires on all cylinders with codes 2b57 and 2796 as well appearing on my code reader. Im leaning towards my fuel Breather Valve.

Could this really be the cause of me going in limp mode and not starting or is it something bigger

[BP709]

Fuel breather valve will not cause a no start condition. You likely have a fuel pump failure or one of you’re fuel level sensors is reading incorrectly which caused you to run it out of fuel. Seen it many times.

[m3.mar]

Im not getting any fuel related codes at all though

[BP709]

Originally Posted by m3.mar

Im not getting any fuel related codes at all though

That doesn’t mean anything. Not all issues set codes that point right at the exact issue. Plus using a generic code reader will lead you in circles if you don’t know what you’re dealing with.

[m3.mar]

Update: vehicle does also smell like gas upon trying to crank i believe BP is right the fuel pump isnt working properly. upon just turning the car onto accessory mode i do hear the car priming , not sure if it could be a injector problem as well

Will update throughout process

[spammysammich]

Check under the driver side rear seat. The top of the sending unit might be cracked. Very common for e9X cars.

[BP709]

Originally Posted by m3.mar

Update: vehicle does also smell like gas upon trying to crank i believe BP is right the fuel pump isnt working properly. upon just turning the car onto accessory mode i do hear the car priming , not sure if it could be a injector problem as well

Will update throughout process

That was just an educated guess. Check fuel pressure. If you have fuel pressure it’s not the issue and move on. You’re going to need a proper diagnostic platform like BMW Ista or something more powerful than a code reader. You should probably contact you’re trusted shop (if you have one) and have them diagnose the vehicle.

[m3.mar]

UPDATE: burnt fuse in the fuse box was what was causing my issues took it out the shop replaced the fuse and the fuel breather valve the same day . Thanks to everyone who helped

[BP709]

Originally Posted by m3.mar

UPDATE: burnt fuse in the fuse box was what was causing my issues took it out the shop replaced the fuse and the fuel breather valve the same day . Thanks to everyone who helped

Fuse for what component/system?