James R.

I have a feeling that the rate of fuel pressure change is rather small, because I've known people to have driven around with that hose totally rotten and their cars, "seem" fine. My guess is with the hose broken...and lower fuel pressure the car simply has to adjust the injector timing to something more boarderline to keep the car from leaning out. So instead of relying on that technique 100% of the time they gave things a bit of a help by putting a rising rate regulator in there...I dunno just a theory.

I agree with you only in as much as my observations over the years have suggested the implications of that hose coming off haven't been as dire as some might suggest. But I don't think it's a good thing either. A leak is a leak...I'd much rather leak from somewhere I'm certain is trivial rather than one I assume is...

Toaster29

keep that in mind and mod your car in a preventative manner in order to perhaps one day save your turbos/engine. With the heat the your properly working engine produces, it would only take a slight and insignificant leak to lean out your mixture causing a skyrocket in EGTs. I believe your car does come w/ stereo egt probes that the ECU monitors, so it would probably be able to keep things under control. But like I said above, why even take the risk when there are other taps that have little or no consequences if they slightly leak?