welp, figured out the "frozen boost" thing.. turns out a small vacuum hose had come off
02-14-2007, 07:31 PM
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welp, figured out the "frozen boost" thing.. turns out a small vacuum hose had come off
and basically it was representing atmospheric pressure.
There's a valve/solenoid thingy on the firewall basically behind where the fuel rail is.
since i DON'T have a BENTLEY I can't tell you what this thing is, but just that my car is back to being only a little fvcked up =P
There's a valve/solenoid thingy on the firewall basically behind where the fuel rail is.
since i DON'T have a BENTLEY I can't tell you what this thing is, but just that my car is back to being only a little fvcked up =P
02-14-2007, 07:33 PM
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Re: welp, figured out the "frozen boost" thing.. turns out a small vacuum hose had come off
i think that stupuid *** thing is the moisture condensor, damn hose comes off mine all the damn time.
02-15-2007, 04:23 AM
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Put a real hose clamp on it sooner than later- moisture can and will kill the pressure sensor....
BTDT on my 93. I'm not sure how long it was off, but the pressure sensor was dead by the time I got it reconnected.
02-15-2007, 07:21 AM
#7
If its black and looks like a 35 mm film can, thats the moisture trap. NOoB.
The Bentley wouldn't have helped you. But any of us here in Vancouver with S4s would have found that in a second. It happens to ALL S4s (IME) at some point. Buy the smallest gear clamp you can get at a NAPA or AutoPro or CTC and replace both the inlet and outlet OE clamps on the moisture trap hoses.
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02-15-2007, 07:53 AM
#8
Rob...you need to do some reading. I'll send you something. The pressure sensor is the ....
MAP, i.e. manifold air pressure sensor. Yours would have had a 2.5 Bar sensor originally, chipped you may have a 3.0 Bar sensor or a VMAP. Its the feed back for the computer so it knows what the level of boost is. The computer uses that signal (and a few others like RPM, throttle position, O2 sensor, temp, etc. to decide what the timing and fuel and boost (via the WGFV) need to be set at.
02-15-2007, 07:37 PM
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oh see. So the can is just the moisture trap for that line.. yea, I got a 3.0bar VMAP.. so the
outlet from the "film can" is the green plastic line that ends up in the ECU.
cool, it's all starting to make sense.
a BENTLEY sure would be nice though
cool, it's all starting to make sense.
a BENTLEY sure would be nice though
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