realistically achieving about 150bhp from my hdi?

[Pipps]

I recall Mr Whippy wrote a nice long post on how the uprated rail pressure sensor is capable of providing different timings which enable better fueling at higher revs. This is why a Stage 2 map file needs to have its timings set up differently if the uprated fuel sensor is being used. Anyway, I agree that 'fuel pressure sensor' is the proper name for it.