No Subject

["R. Wiratorn" <withu@loxinfo.co.th>]

    Do you know how to disconnect vaccuum hose connect from
> >      engine to boost pressure gauge ?
> >      Where is that hose ? It should be in an engine bay, right ?
> 
> What engine?  In most cases, the boost gauge is driven by the ECU.  And you
> can't disconnect _that_!
> 
		Ah yes, I see vaccuum hose connected to the ECU.
The whole story is my Audi S4 never go as fast as it should, boost
gauge shows normally, 0.6-2.2 bar.  One day, the boost gauge showed 
1.0 bar all the time, at any rpm, and of course, the car is even 
slower than before. the mechanic fixed it free of charge. He told me
that one vaccuum hose is off, he just put it in place. After that day
my car was very powerful, it pushed hard in every gears, I don't know
what happen to my car. I live with this level of performance until the 
time for 60,000 Km service. After the car's been serviced. the old 
problem's back. the turbo is boost normally but the car doesn't go. 
    I plan to fool the boost gauge to read 1.0 BAR again and then fix it.
 maybe the car become powerful again.	My car is modified with MTM chips.

						Thanks a lot
						Ben