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Dwell / Duty Cycle Q.
- Subject: Dwell / Duty Cycle Q.
- From: fahrvergnugen at cox.net (fahrvergnugen@xxxxxxx)
- Date: Fri May 11 13:47:00 2007
That's normal IMO...
David
---- "Camron D. Crouse" <camron@xxxxxxxxxxxxxxxxxx> wrote:
> Here's a pic of my Idle Air Bypass Screw:
> <http://scirocco.dyn.dhs.org/vw/list/Camron/_MG_6196.JPG>
>
> Should I be seeing the O-ring just below the head of the screw?
>
> Thanks again everyone!
>
> - Camron from Vancouver, WA USA
> '86.5 Black 16V 2.0L
>
>
> ******************
>
> > Sean Whalen wrote:
> >> Yes, yes, and yes. They're all dependent on each other. A new
> >> o-ring will make a world of difference. Air can be your enemy.
> >
>
> Camron D. Crouse wrote:
> > Thank you, thank you, and thank you!
> >
> > And what about the breather hoses - will the values be close enough
> > if they are in running position, or, if only the L nipple to the
> > intake boot is in the test position? I did get that to fit snug, ya
> > just gotta stuff it in there. Really I'd rather do it "right", but if
> > it's splitting hairs then no biggie.
> >
> > - Camron from Vancouver, WA USA '86.5 Black 16V 2.0L
> >
> >
> > ***************
> >
> >
> >
> >> On 5/10/07, *Camron D. Crouse * <camron@xxxxxxxxxxxxxxxxxx
> >> <mailto:camron@xxxxxxxxxxxxxxxxxx>> wrote:
> >>
> >> Forgot to add: Checking the duty cycle of the *Idle Stabilizer
> >> Valve*... just to clarify.
> >>
> >> New info: checked with hoses in place, the lowest value I could
> >> obtain (via adjustment of the idle air bypass screw only, leaving
> >> the A/F screw in the fuel dist. alone) was 66%, Bentley target is
> >> 26-30%. Red probe on grey/white wire, black to ground. I actually
> >> turned the idle air bypass screw quite a few turns, and quite
> >> easily with my bare hands... must need a new o-ring there? It is
> >> currently at full clockwise.
> >>
> >> Do I need to go back and readjust the the A/F screw on the fuel
> >> dist, then check duty cycle again? Are these two adjustments
> >> interactive? And if I adjust the ignition distributor timing, do I
> >> start over?
> >>
> >> Thanks!
> >>
> >> - Camron from Vancouver, WA USA '86.5 Black 16V 2.0L
> >>
> >> ********* Camron D. Crouse wrote:
> >>> Checking duty cycle values for 2.0 16V Scirocco w/CIS-E +TT fuel
> >>> enrichment module. DPR current successfully set while at full
> >> running
> >>> temp, 10mA +/- 1mA with a brand new auto-ranging multimeter.
> >>>
> >>> Trying to accurately check duty cycle. Bentley describes
> >> disconnecting
> >>> crankcase ventilation hoses, but the illustration seems to
> >> depict a
> >>> fuel-distributor-on-passenger-side setup, and the hoses don't
> >> quite
> >>> correspond so I am unclear on which crankcase hoses I actually
> >>> disconnect and at which points (Bentley illustration shows a
> >> ventilation
> >>> hose with a nippled T in it, but I have no such T). In addition,
> >>>
> >> the L
> >>> nipple to the intake boot does not fit snug while in the test
> >> position.
> >>>
> >>> Do you folk make this check with hoses disconnected or in running
> >>>
> >> position?
> >>>
> >>> BTW I am going through DEQ tomorrow so that I can bring my
> >> registration
> >>> up to date. Tuning for passing E-check, so stock settings
> >> wanted...
> >>>
> >>> TIA!
> >>>
> >>> - Camron from Vancouver, WA USA '86.5 Black 16V 2.0L
>
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