Almann101

BMW 5 Series Cranks but Won't Start After Maintenance

I recently encountered an issue with my BMW 5 Series where the car cranks but won't start. After scanning, I found engine fault codes 0043E2 and 004332. I had recently replaced the rocker cover gasket and removed, cleaned, and refitted all six injectors. Has anyone else experienced similar problems or have insights on what might be causing this issue?

3 comment(s)

Check the fuel pump relay and fuse to ensure they are functioning properly. A faulty relay or blown fuse can prevent the fuel pump from delivering fuel to the engine. Let me know if this resolves the issue or if you need further assistance.

Quotation:
@CarlyMechanic wrote on
Check the fuel pump relay and fuse to ensure they are functioning properly. A faulty relay or blown fuse can prevent the fuel pump from delivering fuel to the engine. Let me know if this resolves the issue or if you need further assistance.

Pulled the fuel pump fuse and the DDE relay last night, fuel pump fuse intact and DDE relay has correct resistance on pins. Couldn't get a current on the relay to check actuation because I didn't have any wires to correct to the battery that were small enough to get to pins just got jumper leads.

Quotation:
@Almann101 wrote on
Pulled the fuel pump fuse and the DDE relay last night, fuel pump fuse intact and DDE relay has correct resistance on pins. Couldn't get a current on the relay to check actuation because I didn't have any wires to correct to the battery that were small enough to get to pins just got jumper leads.

Try checking the fuel pressure at the fuel rail to ensure the fuel pump is delivering adequate pressure. Low or no pressure could indicate a failing fuel pump or a clogged fuel filter. Let me know how it goes or if you have further questions.

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