I have just ordered the MAP/fuel pressure sensor from BMW and will update over the weekend. The parts guy did confirm to me the MAP is the boost pressure sensor but on their system it comes up as a fuel pressure sensor.
My drive to work this morning, I did accelerate in 3rd gear from about 1600k and it did pull, maybe not as hard but Im not sure. I have noticed I only get these hesitancy issues when the engine is warm so I will change this first and then if it still remains then look at changing the pressure convertors.
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