Re: [T3] Pressure Regulator

[Russell Wolfe <russella@netins.net>]

Those are not pressure regulators, but vacuum sensors, with built in altitude
correction. They are very sensitive to being on the right car with the right
ECU. VW changed them about every year. What usually goes wrong with them, is
the the bellows inside will crack. (not the stuff you smoke). Maybe your car
did not have the right one to begin with when you got it. The PO may have put
the wrong one on. The oil in the one, comes from an over filled air cleaner,
usually, and doesn't really hurt it. They can be cleaned. Be sure you compare
the part numbers on the parts when you swap them.

--
Russ Wolfe
http://www.wolfenet.net

On Mon, 12 Jun 2000, Steve Glavas wrote:
> Y'all--
> 
> > The regulator is just a mechanical device, so there is no use here
> > for the VOM. You just need a pressure gauge.
> >
> I'm actually talking about the weird part off to the left side of the engine
> attached by three screws to the body.  One vac hose connects it to the
> plenum, a four wire connector connects it to the FI system (still all there
> in one piece but very close to be fully removed and set on fire, per a
> previous satirical post).  It's roughly the size of a large hand grenade
> about to blow your engine up.  I have no idea if it's a fuel pressure
> regulator or a radar detector. Bentley never shows a pic of it, or describes
> it in any detail. The trouble "shooting" guide is as lame as surging idle I
> once had.
> 
> >What do you measure? If it is below 13.5 V.
> 
> 14.3 or so.  Voltage reg is fine (Bosch, fairly new @ ~1 year, no gen light
> either). Gen is fine (rebuilt, nice brushes, pretty paint job)
> 
> This problem started when I changed the "radar detector" out with a
> new-to-me one to get rid of the lame surging idle problem.  All vac leaks
> were fixed prior to this with as many new rubber seals, hoses, etc, etc.
> Replacing the radar detector and got rid of the lame surging idle problem.
> 
> Now it idles mildly faster (removing said vac hose increases idle above when
> it's connected per the trouble "shooting" guide), has noticeably poor power,
> exhaust pops, crappy mileage, and really smelly fumes.  It's parked and it
> ain't goin' nowhere except to Bug Pack for 34ICTs and somewhere else to get
> the linkage.
> 
> I have several radar detectors I can test.  One with oil in it (not so
> good), two without.  And those two are giving me the same symptoms.  Or, at
> least since I have changed this thing, the car just hasn't been the same.
> You think those two used radar detectors were why the previous Type 3s were
> in the junkyard?  I'm beginning to suspect so.
> 
> Any help is appreciated.
> 
> Thanks,
> Steve
> '71 Tuff Shed
> 
> 
> 
> 
> -------------------------------------------------------------------
> Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe