1.4 bar low boost and recent owner impressions
pjrose at frontiernet.net
Wed Jan 28 00:29:57 EST 2004
At 9:40 PM -0700 1/27/04, auditude at cox.net wrote:
> Well, the computer display decided to
>work just as I was almost home tonight, so I took another short trip
>to see if it's still 1.4 bar
>max. It is.
>Since the boost gets up to 1.4 bar exactly, I'm thinking it's the
>ECU not assisting the WG
>spring (instead of a leak or bad turbo). So far I have replaced the
>WGFV (it was dead), the
>BPV (it was leaking), and the IC hoses (they weren't Samco's). I've
>check for fault codes
>(none currently) and ran the output checks (everything's fine).
>I've disconnected the MFTS
>and it didn't make a difference.
> the car
>makes an audible bypass valve noise when I shift.
Hmm, that's suspicious (i.e., that you have a "bypass valve noise").
Was the leaking BPV replaced with a brand new, stock (Bosch-type)
valve? The several (new, functioning) Bosch valves I've had have not
made any distinctive noise when I shift (or any other time). A tear
in the valve bellows could be causing that noise. Or some other leak.
Have you checked to determine that the vac line to the BPV is intact?
mailto:pjrose at frontiernet.net
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