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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 4+: 60 results shown for enrichment.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: Question about testing O2 sensor with digital meter
    Historical mailing list - Scott Daniel - Turbovans
    Fri, 26 Sep 2008 15:58:19 -0700
    ...They still use 'em with > recent diesel (TDi/ALH) engines, too. > > What does a W/C use for cold start fuel enrichment? Just longer...
  • Re: Poor Hot Start Discovery - midway through solution
    Historical mailing list - David Beierl
    Sun, 26 Aug 2012 18:31:16 -0400
    ...Unless, of course, T-II is unplugged, in which case it starts thinking in terms of really extreme cold and huge enrichment. The T...
  • Re: Auxiliary air regulator
    Historical mailing list - Dennis Haynes
    Sun, 14 Jan 2007 04:39:41 +0000
    ...system. > Thanks to > List members who helped me find a idle enrichment switch > recently. I have > that part installed now. > > Today I tested the...
  • Re: 85 Digijet throttle switches -- information please
    Historical mailing list - Michael Diehr
    Tue, 29 Jun 2004 15:43:13 -0700
    ...but I've been >going through the fuel injection system. > >I found that the full-throttle enrichment and idle switches aren't making >contact...
  • Re: Failed Smog Test
    Historical mailing list - Dave Bayer
    Fri, 22 Jan 1999 15:35:41 -0800
    ...Someone might be able to tell you if the O2 sensor signal overrides the temp sensor's enrichment because I do not know... Also...
  • Re: what did i do? tempII sender
    Historical mailing list - Bill Davidson
    Wed, 10 Jan 2001 17:46:27 -0800
    ...The Temp II sensor sends information to the ECU which uses this information to adjust the fuel enrichment during start up.... The coolant temerature...
  • Re: [Vwdiesel] Need help getting parts from Germany
    Historical mailing list - Gary Lee
    Sun, 9 Mar 2003 12:09:55 -0700
    ...The Jetta/Golf "Ecodiesel" sold in north america was configured this way in that it did not have boost enrichment. I've used the...
  • Re: hard starrting when warm
    Historical mailing list - John Lane
    Sun, 8 Oct 2006 20:36:06 -0700
    ...The fuel enrichment takes place and essentially floods the engine. If you wait an hour or so, depending upon your environment, the engine is...
  • Re: What's the difference between ecodiesel and regular turbodiesel?
    Historical mailing list - tmiller
    Tue, 18 Jan 2005 20:02:58 -0500
    ...pump has a boost enrichment circuit which pumps more fuel into the engine when under boost pressure, and the ECOdiesel inj. pump does not...
  • Re: Emissions Failure
    Historical mailing list - Alistair Bell
    Thu, 29 Jun 1995 19:40:07 -0700 (PDT)
    ...sensor's resistance changes and the computer backs off on the enrichment. So a quick fix without tech data is to measure the resistance...
  • Re: 86 Syncro 2.1 surging at 2K rpm no load
    Historical mailing list - Dennis Haynes
    Thu, 24 May 2012 14:30:56 -0400
    ...so instead of over running cut out you get full throttle enrichment. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com...
  • Re: vanagon Digest - 18 May 2004 (#2004-473)
    Historical mailing list - don spence
    Wed, 19 May 2004 09:23:26 -0600
    ...I have tested the sensors, the air intake > plate, the > deacceleration switch and the full throttle enrichment switch, and > they test > good. Tested the...
  • Re: Timing
    Historical mailing list - Ken Lewis
    Wed, 19 May 2004 06:17:13 -0400
    ...I have tested the sensors, the air intake plate, the > deacceleration switch and the full throttle enrichment switch, and they test > good. Tested the...
  • Re: Van hesitates--where to start troubleshooting?
    Historical mailing list - Darrell Boehler
    Fri, 13 Oct 2000 07:39:35 -0500
    ...I think I may have a problem when I need > fuel enrichment. The idle is a little rough too, but not real noticeable. > > Just...
  • Re: 85 Digijet help request
    Historical mailing list - Jim Thompson
    Mon, 1 Dec 1997 13:25:53 EST
    ...Located on the throttle body, these help tell the ECU when to idle and when to go to full enrichment at full throttle. Some...
  • neuspeed kompressor was ->Re: Engine conversions; Waterboxer to:
    Historical mailing list - Sudhir Desai
    Sun, 1 Apr 2001 20:56:17 -0700
    ...but, with a piggyback "fuel enrichment device"(a fifth injector) and a smaller drive pulley to put out 7 lbs of boost at a...
  • Digijet Digitool Info
    Historical mailing list - Mark Ingalls
    Sun, 4 Mar 2001 11:43:28 -0600
    ...Injector LED Pin 21 to ---------� l----------ZZZZZ---------Pin 7 for Start enrichment LED Pin 19 to----------� l----------ZZZZZ----------Pin 4 for Throttle position switch...
  • Re: The love affair maybe be ending.....
    Historical mailing list - Robert Keezer
    Wed, 17 Feb 2010 22:19:05 -0800
    ...throttle body, one for decelleration and the other for full throttle enrichment- if these are bad or misadjusted, it could be a possibility.. Robert...
  • Re: hesitation from a stop and replacing afm
    Historical mailing list - Dustin Fitch
    Thu, 27 Mar 2003 19:05:05 EST
    ...And yes, getting your idle and enrichment or whatever, etc, etc, straightened out can sometimes be frustrating, but once you get those bugs worked...
  • Re: Digifant, barometers, and the AFM
    Historical mailing list - Alistair Bell
    Mon, 1 Nov 1999 13:45:18 -0800
    ...Over-enrichment is avoided and, therefore, excessive fuel consumption at high altitudes. The altitude compensation is provided by a sensor which measures air pressure...
  • Re: Arduino and Vanagons
    Historical mailing list - Dennis Haynes
    Wed, 20 Nov 2013 15:14:26 -0500
    ...Isn't the ICU basically taken out of the picture any time the throttle is just off idle or at WOT? (throttle enrichment switch...
  • Help!-hiccupping 81 Westy
    Historical mailing list - MLind
    Wed, 10 May 2000 21:11:34 -0400
    ...I have checked all the new FI components per Bentley (except whether the fuel enrichment is leaking) and they are all in spec. The...
  • Re: Running Trouble
    Historical mailing list - Jim Arnott
    Mon, 19 Mar 2001 19:56:09 -0800
    Check your 'full throttle enrichment switch'. If failed, it sends a signal to the ECU for full rich. Jim Arnott WetWesties Union, OR VW...
  • Fwd: Vgon syndrome on 1.9 WBX
    Historical mailing list - zampano
    Wed, 14 May 2003 03:04:59 -0700
    ...Even did all the checks >>> involving the throttle valve/full throttle enrichment valve. Check. >>> My >>> air filter is rather clean. Fresh spark plugs now...
  • Re: Questions regarding throttle valve switch
    Historical mailing list - Karl Wolz
    Tue, 24 Jan 2006 21:56:00 -0700
    ...At full throttle, it provides maximum fuel enrichment for all the obvious reasons. At the fully closed position, it shuts down the fuel supply...
  • '85 Vanagon..Running rich/poor mileage ??
    Historical mailing list - Ben Jaffe
    Wed, 17 Apr 1996 20:53:47 -0700 (PDT)
    ...Does anyone have any suggestions as to where I should look? Is it possible that there is some sort of cold-start idle enrichment...
  • Re: idle microswitch
    Historical mailing list - Dennis Haynes
    Thu, 14 Nov 2013 22:01:54 -0500
    ...Get the engine speed over that bump and then the system will go for full throttle enrichment. Dennis -----Original Message----- From: Vanagon Mailing List...
  • Re: Temp II Sensor, Engine Hot.
    Historical mailing list - neil n
    Wed, 25 Sep 2013 08:45:30 -0700
    ...the ECU when the oxygen sensor, idle stabilization, and full throttle enrichment functions are activated." > > Last sentence a little ambiguous eh? -- Neil n Blog...
  • Re: Diagnosing rich running 1.9l WBX
    Historical mailing list - Ken Lewis
    Thu, 27 May 2010 17:20:28 -0400
    ...Running out of gas > repeatedly at 120 miles or less. > > Details: > She's acting as if she's continually in cold start enrichment mode...
  • 84 Vanagon 1.9 pulsing idle
    Historical mailing list - Preston Lewis
    Tue, 13 Apr 1999 14:23:37 -0700
    ...Warning, there is another switch nearby called the "full throttle enrichment switch" which, according to the manual, "supplies the control unit with information to...
  • Fwd: Re: want to buy a fox, (no on the Fox, BUY,,,,,,,,,,,,,,,,,,,
    Historical mailing list - Pfunky
    Mon, 27 Apr 1998 06:37:19 EDT
    ...As for throttle response, the CIS car must wait for the engine vacuum to pull up the flap for enrichment. Air is slower than...
  • Re: heat in VW Vans
    Historical mailing list - John
    Sat, 30 Sep 2000 14:18:22 -0400
    ...The strategy for the location of the heater is that it limits the over-rich cranking enrichment that dilutes winter engine oil and it...
  • Re: Dying FI etc.
    Historical mailing list
    Tue, 7 Feb 1995 01:53:34 -0400
    ...If it only runs well at fool throttle, then you're running basically on the fuel enrichment circuit, governed by a micro-switch on...
  • Re: Diagnosing rich running 1.9l WBX
    Historical mailing list - Zoltan
    Thu, 27 May 2010 14:25:03 -0700
    ...Running out of gas > repeatedly at 120 miles or less. > > Details: > She's acting as if she's continually in cold start enrichment mode...
  • Fwd: Vgon syndrome on 1.9 WBX
    Historical mailing list - zampano
    Thu, 15 May 2003 01:34:05 -0700
    ...The idle valve, >>> full throttle enrichment >>> switch, >>> checked >>> all the voltages and resistance per Bentley. All checked out good. >>> Checked the ignition timing. Swapped...
  • '88 Vanagon Emmissions fix
    Historical mailing list - Jim Arnott
    Sat, 23 Dec 2000 15:16:10 -0800
    ...The enrichment/idle switches are functioning. The coolant sensor has been replaced and another ECM was apparently tried without success. There are no vacuum...
  • Re: diesel altitude compensation
    Historical mailing list - Alex Towner
    Mon, 8 Mar 2004 03:06:10 -0500
    ...2) Adjust the enrichment of the injection pump. This is done by adjusting the horizontal screw (with locknut) that is above where the injector...
  • FW: [Audi-VW-Diesels] Some questions...on a diesel engine in a va nagon
    Historical mailing list - Carrington, Tom
    Tue, 29 Aug 2000 10:53:20 -0400
    ...I guesss somewhere around 50 - 60 h.p. (the Ecodoesel got 58 - 59 and does not have the boost enrichment diaphram on the pump...
  • Re: Timing
    Historical mailing list - Larry Alofs
    Wed, 19 May 2004 10:26:28 -0500
    ...I have tested the sensors, the air intake plate, the >deacceleration switch and the full throttle enrichment switch, and they test >good. Tested the...
  • Re: WBX Digifant Ground Check. No Continuity Between Some Points.
    Historical mailing list - neil n
    Sat, 9 Jun 2012 16:57:28 -0700
    ...plug, ground wire of temp II >> sensor, ground of throttle valve (enrichment) switch, pin 6 of ECU, and >> engine metal or frame correct? >> >> I...
  • Re: CS diesel block with turbo-charger
    Historical mailing list
    Sun, 8 Dec 1996 02:06:46 -0500
    ...Do you have a problem with the boost enrichment diaphram on the injection pump hitting the engine compartment lid? A general question to any...
  • Re: hard starting when warm
    Historical mailing list - Dennis Haynes
    Sun, 8 Oct 2006 23:57:15 -0400
    ...The fuel enrichment takes place and essentially floods the engine. If you wait an hour or so, depending upon your environment, the engine is...
  • Re: What motor specs do you have/ was Turbo muffler
    Historical mailing list - Ken Hunter
    Wed, 1 Aug 2001 03:40:00 EDT
    ...I am even considering running ECO diesel style without the fuel enrichment aneroid for less stress on the motor. The 1.9NA at 5000...
  • Re: Diagnosing rich running 1.9l WBX
    Historical mailing list - Ken Wilford
    Thu, 27 May 2010 18:46:43 -0400
    ...Running out of gas > repeatedly at 120 miles or less. > > Details: > She's acting as if she's continually in cold start enrichment mode...
  • Re: Diesel Vanagon Questions
    Historical mailing list - Bob O Shaughnessy
    Sat, 31 May 2003 10:57:27 -0400
    ...But the stickiest part of the whole conversion is the boost enrichment aneroid on the top of the TD fuel pump. The Quantum and...
  • Re: Temp II Sensor, Engine Hot.
    Historical mailing list - Scott Daniel
    Tue, 24 Sep 2013 18:15:15 -0700
    ...The resistance signal it produces is used by the control unit to > determine: > > The amount of cold start and warm-up enrichment > Ignition timing...
  • Re: hard starrting when warm
    Historical mailing list - Clint Kolda
    Sun, 8 Oct 2006 20:43:51 -0700
    ...The fuel enrichment takes place and essentially floods the engine. If you wait an hour or so, depending upon your environment, the engine is...
  • Re: O2 voltage when cold
    Historical mailing list - Chuck Mathis
    Mon, 18 Dec 2000 17:24:12 EST
    ...about 650 mV, which I'm guessing is the correct idle enrichment value. Then a couple of minutes later the ECU goes into closed...
  • interesting problem ... solved
    Historical mailing list - John Y. Hung
    Thu, 20 May 1999 13:12:48 -0500
    ...With warm engine, no enrichment occurs and the marginal ignition system prevented the engine from running. I attribute the intermittent engine missing to the...
  • UPDATE - RE: [VANAGON] 87 Runs Super Rich 20 Minutes After Cold Start - Why?
    Historical mailing list - Richard Golen
    Tue, 8 Jul 2008 23:05:10 +0000
    ...Then Inoticed one of the wires broke off of its connector that goes to theP/S enrichment switch. Pulled off the other lead, touched...
  • Re: Throttle switches
    Historical mailing list
    Thu, 6 Jun 2002 10:37:27 -0500
    ...switch is > >noit activated, nor is it activated when accelerating. > > Acceleration enrichment is actually taken care of by the over-swing of the > AFM...
  • Re: 84 and 85 engine differences?
    Historical mailing list - Old Volks Home
    Sun, 12 Apr 1998 20:48:21 -0700
    ...There are a few minor differences in the Throttle Idle and Enrichment Switch arrangement as well. I believe the 85 has the two separate...
  • Re: 1.9L white smoke
    Historical mailing list - John Rodgers
    Wed, 7 Mar 2001 23:15:39 -0600
    ...Note, both times it's done this, I was full-throttle (ie, enrichment > switch was closed). > > Any ideas? > > Bradley Flubacher > State College, PA
  • Plug fouling & gas in oil problem....
    Historical mailing list - Alan Cady
    Wed, 21 Dec 2005 08:03:00 -0800
    ...Oxygen Sensor Fuel pressure regulator Bad Fuel Injectors Fuel Injection Control Unit Intake Air Sensor Auxiliry Air Regulator Full Throttle Enrichment Unit Residual Fuel...
  • Re: Why doesn't fuel shut off?
    Historical mailing list - Dennis Haynes
    Tue, 30 Oct 2007 00:19:31 -0400
    ...the ECU think you are at full throttle and go to enrichment. This combined with high manifold vacuum will pull extra fuel through the...
  • Re: Hard starting when warm
    Historical mailing list - Mark Keller
    Sun, 24 Dec 2000 18:18:59 +0000
    ...I , air temp sensor, giving some modification of the cold start enrichment of the basic pulse map. If the temp I were bad then...
  • Re: Arduino and Vanagons
    Historical mailing list - Brett Ne
    Wed, 20 Nov 2013 13:41:02 -0800
    ...time the throttle >> is just off idle or at WOT? (throttle enrichment switch activated or >> not). >> > > Maybe, maybe not. Maybe the idle throttle opens...
  • Re: full throttle switch boost - HOW TO?
    Historical mailing list - Frank Grunthaner
    Thu, 30 Aug 2001 14:01:43 EDT
    ...The full throttle enrichment is probably only 5 to 12 percent higher than the open loop map at that RPM. The key design point...
  • Re: 85 Digijet throttle switches -- information please
    Historical mailing list - Chuck Mathis
    Tue, 29 Jun 2004 18:09:06 -0500
    ...but I've > been > going through the fuel injection system. > > I found that the full-throttle enrichment and idle switches aren't > making > contact...
  • Re: Wheres Waldo (EGR or no EGR)
    Historical mailing list - Dennis Haynes
    Sat, 6 Dec 2003 20:50:08 -0500
    ...In addition, full throttle enrichment also lowers that peak flame temp. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On...