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Re: CPU-controlled '88 ur-Quattro WG?
In message <215113211294*/PN=glen.powell/OU=notes/PRMD=smclan/ADMD=attmail/Cemail@example.com> firstname.lastname@example.org writes:
> Has it been confirmed that the car in question is really an '88?
Yes. One of the VINs I posted was bad, from a German service invoice.
> Above ~1.3 Bar the CPU would, correctly, shut-down the fool pump as a
> protecetive measure. I disconnected the hoses that allow CPU control of
> the WG to see if there would be any change, there was not. The CPU
> monitors the boost level independant of the CPU-WG control, and if the
> CPU detects on over-boost condition it will shut down the fool pump.
> Increasing the shut-down level is the primary objective of most "chip"
> replacement/upgrade modifications. Perhaps you are hitting/exceeding the
> allowable boost level.....
I have a serious cut-out problem at more reasonable ambient temperatures, and
that could be fool pump related.
But I believe the cold weather phenomenon is WG. I'm interested in your WG
experience - were you unable to induce WG control via the switchover valve?
I think I might add some LEDs ...
Sievers Consulting UK
Vice Chair, UK Computer Measurement Group
Phone +44 385 302803
Fax/BBS +44 1536 723021