2015 BMW 325 F30 - Difficult Start - Error Code 273F00

[CrawlerTagz]

I possess a 2015 BMW 325 F30.

Experiencing difficulties with a difficult start and some oscillation. The automobile consistently starts, albeit after several cranks, regardless of temperature conditions.


I have connected it and possess several codes.

25D400: Exhaust pressure sensor located before the turbine, range: exceeded top physical limit. 273F00: Crankshaft sensor, signal: no signal detected.

I have replaced the crankshaft and camshaft sensors, verified the voltage, and all is functioning properly.


Do you have any suggestions for what I should examine next?

[Kenjibb]

Examine the pipework leading to the pre-turbine pressure sensor for obstructions, and also inspect the differential sensor pipework for blockages, in addition to reviewing live data for DPF pressures.

To ascertain the functionality of the crank sensor, it is advisable to utilise an oscilloscope to verify signal production; nonetheless, it is likely operational, as the engine would cease to function in its absence. I presume it is a diesel engine. A tone wheel is located on the crank behind the flywheel, generating the crank signal; in diesel engines, the cam sensor is utilised for starting, while the crank signal assumes control once the engine is operational.


Which equipment have you utilised for scanning?

[CrawlerTagz]

Thank you for your response.

It is peculiar that disconnecting the crank sensor results in the car starting identically to when it is connected; the vehicle never stalls, and the sole problem I encounter is difficulty in starting.

[Shmoein]

How do you resolve the issue?

[Shmoein]

???