Hi folks,
I'm going to replace the fuel pressure regulator on my 740, after pulling the vacuum hose today and smelling fresh gas. I've been hunting down a low power/poor mpg/straining-engine-sound problem for a while. The FPR is original to the car, I think, since it has the same matte patina as the intake manifold.
My idle is silky-smooth at 900rpm (just the occasional 'blip' that you BB-ers have suggested is inherent to the B230 engine), and in gear will idle closer to 700. I have no pressure gauge to use on the fuel rail, unfortunately.
Before the part arrives (Bosch from eEuroparts), I would like to understand what I am actually getting into. Will I be removing the FPR from a pressurized fuel line? Please advise me so that I don't get gas all over my engine. Thanks!
Ari
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