[s-cars] Fw: Hoppen Stage IV - boost (or lack thereof) issue

[Marc Weiner]

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Hey all, don't post often.  I have a 94 S4 w/ Hoppen Stage IV (est.360hp) R=
S2 turbo, exhaust man., injectors, lehman re-worked cyl. head, lower compre=
ssion pistons, lehman stage IV chips (same car written up in EC w/ Frank "D=
on" Amoroso, Mark Hunter, etc.)  Anyway, I was doing a typical commute to D=
enver from Ft. Collins and somewhere in the middle of it I lost all boost. =
 Car seems to be running on just the 20V 5cyl. w/ no turbo assistance (or m=
aybe very little).  I have gone through all the hoses (not getting any woos=
hing sound -like its blowing out somewhere BTDT many times (have all 3 of t=
he samco sport hoses and and the upgraded adjustable (metal) WBV from Dave =
Jones.  I know what it sounds like when a hose has popped off and that is t=
hat the case here.   I am getting absolute 0 reading on my TDO 0-30psi boos=
t guage (needle won't budge even on full throttle) - car had been consisten=
tly making 25-26psi at full throttle overboost.  There are no warning light=
s coming on.  Car had been running flawlessly, however, I do have 180k on t=
he clock.   Any ideas????- could it be an ECU or pressure sensor problem (t=
he ECU has a 3.0 bar pressure sensor/transducer).  Thanks in advance for an=
y help. . . .I am stumped.
Marc Weiner
Ft. Collins, CO

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