[s-cars] YeeHaaa!

[Theodore Chen]

great news!

so you actually had two problems: failing WGFV, and leak in intake
tract.

disconnecting the WG should have given you max boost, and it gave you
only 12-13 psi because the michelin man hose was leaking at high boost.

did your WGFV pass the output test?  i'm dubious about the usefulness of
the output test, because it doesn't actuate the WGFV very fast, and a WGFV
that is able to cycle once every second could be failing at higher
frequencies.  although i appear to have fixed the low boost problem on my
car with a new O2 sensor, i wonder about my WGFV.

BTW, i tightened the clamps on every hose when i was checking the
intake tract, and i found a rusted clamp that broke when i tried to
tighten it.

i also replaced a lot of little hoses, two of which were chafing badly
and about to rub through (one was the vacuum hose that goes to the fuel 
pressure regulator, and the other was the vacuum hose that goes to
the bypass valve).

so although my problem turned out to be the oxygen sensor, i did find 
(and fix) several items that were about to become problems, and i finally
got around to swapping in the rest of the samco hoses.

the turbo to crossover hose was already an nice orange hose from hoppen,
and it was in perfect shape, but i replaced it with a blue samco hose 
that matches all the other blue samco hoses.  :)

anybody looking for a turbo to crossover hose from hoppen?

-teddy

--- Robert Myers <bob at chips-ur-s.com> wrote:

> 
> Hi Y'all,
> 
> Boost is back.  The cause of my low boost problem:
> 
> 1.      The WGFV actually was dead or dying.  It would not permit the 
> WG to operate properly and boost was limited to ~12 psig.  R&R caused 
> a major and very satisfying but short term boost increase up to 27-28 
> psig.  Then, with boost well into the 20's boost dropped again to the 
> same old 12 psig level it had been before working on the WGFV.  What 
> a disconcerting feeling.  :-(
> 
> 2.      A slightly loose clamp on the Michelin Man hose allowed the 
> hose to slip off the end of the crossover pipe when boost was 
> up.  When boost dropped back the hose would slip right back onto the 
> crossover pipe.  It looked and felt tight.   I believe this started 
> when boost was up from the WGFV R&R.
> 
> The problem is solved.  My MM hose will not bother me again since it 
> now resides in a box of used parts which includes the MM hose, the 
> crossover pipe, and the OEM intercooler and various and assorted 
> other minor pieces.  My new FMIC is now installed (bought last summer 
> and FINALLY installed today).  Boost is back and driving is once 
> again fun.  YeeHaaa!!!  :-D
> 
> Bob
> http://chips-ur-s.com
> 
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> 


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