Search messages and discussions

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 10+: 60 results shown for Throttle valve switch.

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

• Re: Compression braking & Power Loss
  Historical mailing list - dooley
  Fri, 24 Feb 2006 12:56:48 -0500
  ...More likely "idle" position on the throttle switch changes fuel curve to an "idle" situation and puts lower emphasis on signal inputs from MAF...
• Vanagon Syndrome cont...
  Historical mailing list - Keith Ovregaard
  Tue, 11 Oct 2005 19:06:04 -0700
  ...fast idle ECU contacts/wiring-OK O2 sensor-OK (new) throttle valve switch-OK but I do not have a feeler gauge that small...
• Re: No idle when engine cold
  Historical mailing list - Chris S
  Sat, 25 Apr 2020 12:17:37 -0400
  ...valve unplugged and as an additional test close off/block one of the hoses so that the idle air is supplied by the throttle...
• Re: Arduino and Vanagons: connectors?
  Historical mailing list - JRodgers
  Thu, 14 Nov 2013 23:02:33 -0600
  ...occasions when I wanted or needed that. >> A switch to one of those vacuum valves, if you have any on your van >> there....would...
• Re: I need help, please
  Historical mailing list - Bruce Todd
  Fri, 2 Dec 2022 11:56:03 -0800
  ...cap and rotor > - NGK BP6ET are recent. > - Throttle body switch checked fine > - Idle screw on throttle body cleaned > - A good fuel pressure regulator was...
• Re: It's time to hit that idle Stabilizer on the head!!!
  Historical mailing list - Mark Drillock
  Mon, 3 Sep 2007 06:39:34 -0700
  ...found that both my throttle > valve switch as well as Idle Stabilization weren't working properly. > > Resetting the switch seemed to improve matters, but...
• Idle Problems, update, kinda long
  Historical mailing list - Marc Perdue
  Sat, 11 Jan 2003 16:32:17 -0500
  ...throttle switch, idle stabilization controls, Temp II sensor, and the evaporative emissions system. Poor performance at operating temp. and at full throttle can also...
• Re: '87 Westy stalling when cold
  Historical mailing list - Richard Golen
  Tue, 6 Jul 2004 06:41:58 -0400
  ...Changed air regulator, temp switch, fuel pressure regulator. Turned out it was the throttle switch assembly. I finally decided to quit puttering around and...
• Re: Funky Idle Issues and a note on the shipping issue (long)
  Historical mailing list - Marc Perdue
  Sun, 7 Jan 2001 23:25:45 -0500
  ...is dead or dying > - the throttle switch is messed up for it's idle setting > - the idle stabilizer valve is not opening properly > - the...
• Re: Low Temp Radiator Thermo Switch "Better"?
  Historical mailing list - Dennis Haynes
  Sat, 26 May 2012 10:35:03 -0400
  ...with throttle position and the thermostat-cooling system response to the heat load input. For real fun, suddenly open the front heater valve and...
• Re: Wet weather power loss
  Historical mailing list - David Beierl
  Sat, 7 Apr 2001 02:10:49 -0400
  ...Shorted throttle switch should give rich mixture above some rpm/throttle combination, severe surging below that but above 1500 rpm. Open throttle switch will...
• sluggish on take off Sorta better
  Historical mailing list - Jonce Fancher
  Mon, 24 Oct 2005 20:55:30 -0400
  ...the switch is either open or closed >with a helper. im not sure what TPS is can you elaborate? ( throttle >possition >switch?) also i...
• Re: GoWesty Engine Management system
  Historical mailing list - OlRivrRat
  Sat, 7 Nov 2020 11:32:36 -0700
  ...just a switch. >>>> >>>> The scan gauge tool can display the throttle position and also the duty >>>> cycle of the idle control valve. >>>> >>>> Dennis >>>> >>>> >>>> -----Original...
• Re: low rpm flat spot
  Historical mailing list - Joel Walker
  Thu, 10 Nov 94 21:01:44 CST
  ...Vanagon 1986-87 87-N04 Fuel Vanagon Surging/Stalling - System Adjusting Throttle Switches 1.9 liter 1982-85 87-N05 Engine Easy Does It...
• Re: Fuel Injector (or wiring) Question: Deceleration, Fuel Shutoff Mode
  Historical mailing list - Scott Daniel - Turbovans
  Fri, 27 Jul 2012 21:04:07 -0700
  ...then you think about the elctronics ..AFM, Temp sensor, throttle switch etc. and make sure fuel delivery is good. When I do start checking...
• Re: CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
  Historical mailing list - Rocket J Squirrel
  Wed, 27 Jun 2012 17:32:00 -0700
  "I was a lowly mechanic at a VW shop in Leucadia, CA." There was a VW shop in Leucadia? All I remember is Hugos...
• 1987 High Idle-Follow Up
  Historical mailing list
  Mon, 6 May 1996 12:59:26 -0400
  ...I've switched out the Idle Stabilizer Control Valve with one >known to be good and had the same problem. Next I disconnected the...
• Re: Arduino and Vanagons
  Historical mailing list - Brett Ne
  Wed, 20 Nov 2013 13:41:02 -0800
  ...the throttle >> is just off idle or at WOT? (throttle enrichment switch activated or >> not). >> > > Maybe, maybe not. Maybe the idle throttle opens fully...
• Vanagon Syndrome is it also known as Digifant Disease, maybe?
  Historical mailing list - Don Hanson
  Sun, 15 Jun 2014 20:40:12 -0700
  ...I can't induce the behavior by wiggling wires or flicking the throttle switch or blipping the throttle or anything. Now I recall that...
• Re: [Re: Idle Stabilizer Valve]
  Historical mailing list - Joe Fortino
  Thu, 26 Apr 2001 14:52:43 MDT
  ...sure that your throttle is fully closing, > and that the closed-throttle switch is set and operating correctly. If > that switch sticks closed (or...
• Re: AC & idle stab.
  Historical mailing list - Conrad Schimke
  Thu, 30 Jul 1998 11:12:09 --100
  ...throttle valve switch didn't close on idle. It was 91 DeutschMarks ($51)! Now it works nice. Conrad >I recently had the same trouble...
• Re: RPMs constant, but pulsing vibration at idle
  Historical mailing list - Stuart MacMillan
  Wed, 25 Mar 2015 14:00:55 -0700
  ...idle control valve idle control module throttle body throttle switch vacuum lines/hoses checked for intake leaks, none motor mounts transmission mount 02 sensor...
• Re: Some Engine Conversions (fomerly "TO WATERBOXER OR NOT"??)
  Historical mailing list
  Mon, 10 Jan 2000 09:11:19 EST
  Now that I have most of my problems worked out (Computer, O2 sensor, AFM, Throttle switch, Hall sensor, coil, spark plug wires, tight valves...
• Re: Idle Surge update
  Historical mailing list - Bj�rn
  Fri, 27 Nov 1998 21:22:25 -0800
  A couple of days ago there was a break in the weather and I checked and adjusted the throttle switch. (It is really not...
• Re: Vanagon jerky, fixed maybe?
  Historical mailing list - Alfred Bagdan
  Thu, 4 Oct 2012 09:11:56 -0600
  ...Trying to find the throttle valve switch connector as shown in Bentley manual unsuccessfully (Page 24.35), finally gave up, (where in the dickens...
• Re: Does Idle Stabilizer Constantly Stay On?
  Historical mailing list - Todd Last
  Sat, 19 Apr 2003 12:47:15 -0700
  Don't forget to check the throttle valve switch. Todd '88 Westy John Rodgers wrote: > If you change out the ISV or the ISCU...
• Re: 2.1 digifant MV engine Air Flow Sensor Wiring Harness 87 Vanagon
  Historical mailing list - brad barcom
  Mon, 25 Feb 2002 21:50:46 -0500
  ...I suggest checking the switch before you replace it, though. It should show continuity when the throttle position is at idle and full throttle...
• 87 2.1 dies after 30 seconds
  Historical mailing list - Kevin Duvernay
  Fri, 27 Feb 2015 16:10:31 -0600
  ...AFM is good throttle switch is adjusted good idle control valve and module are both good ECU is good the purple and white vacuum...
• Re: Lunch with Bentley
  Historical mailing list - Dave Kautz
  Mon, 21 Nov 94 15:37:47 PST
  ...Now the point > about the O2 sensor being switched off at full throttle is interesting. > .basically the black box must be nothing more than...
• cold run problems
  Historical mailing list - James Creech
  Wed, 22 Nov 2000 12:59:45 -0500
  ...within specs tests / adjustment (per Bentley) on throttle valve switch, idle speed control valve, air flow meter, temp 2 sensor (my testing on all...
• Re: Oxygen Sensor / Full Throttle Switch
  Historical mailing list - Dave Kautz
  Mon, 21 Nov 94 14:25:51 PST
  ...There just isn't much chance for heat transfer from, say, the exhaust valve seat area to the oil. The oil gets heated up...
• Re: Surging Idle
  Historical mailing list - Claudio Cella
  Mon, 14 Oct 2002 08:40:24 -0700
  ...some adjustments to their original position, however, please check you throttle valve switch adjustment as well. Just a thought. Claudio Cella 87 Vanagon GL...
• Re: Poor fuel consumption 81 aircooled- aux air reg bad?
  Historical mailing list - Stan Wilder
  Sun, 30 Dec 2001 15:21:15 -0600
  ...This could be valve afjustment, leaky lines or the seal at the throttle body and the air box is split / leaking. Stan On Sun...
• Re: Cold Engine/high idle
  Historical mailing list - Katy
  Wed, 7 Jun 2000 11:03:17 -0500
  ...Then I noticed this post below on the list. > There is a switch under the throttle housing on the engine that can cause > this...
• Re: vanagon Digest - 26 Apr 2007 to 27 Apr 2007 - Special issue (#2007-436)
  Historical mailing list - Jake Beaulieu
  Fri, 27 Apr 2007 15:34:04 -0400
  ...Thermo-time switch is working correctly, thus the cold start valve is only injecting when it should (i.e. for the first 7 sec...
• Re: Das Boot still won't crank--latest update
  Historical mailing list - EMZ
  Thu, 21 Jan 1999 17:24:11 -0500
  ...Van was idled up for coolant bleed with valve gauge feelers at the throttle switch. > Engine was on the warm side, radiator fan running...
• Re: Hesitation
  Historical mailing list - Darrell Boehler
  Sat, 12 Feb 2000 07:26:50 -0600
  ...I have > not had time yet to do a full check of the throttle body switch, the idle > stbilizer valve, the idle stablizer control...
• Re: Vanagon Syndrome is it also known as Digifant Disease, maybe?
  Historical mailing list - Larry Alofs
  Mon, 16 Jun 2014 07:35:59 -0400
  ...I can't induce the > behavior by wiggling wires or flicking the throttle switch or blipping the > throttle or anything. > > Now I recall that...
• Re: fwd: Re: Re.: Hot Start Phase II
  Historical mailing list - Joel Walker
  Fri, 19 Aug 94 16:04:21 CDT
  ...You mentioned checking the thermo switch and the pressure valve. >The pump was replaced about 2 years ago. I guess I should check for...
• Re: Compression braking & Power Loss
  Historical mailing list
  Fri, 24 Feb 2006 14:30:59 -0500
  ...The big air valve in the throttle body provides the > seal > > >when pressure is taken off the gas pedal. Dunno what might be the...
• low compression\rough cold idle-1.9L
  Historical mailing list - Scott Wilson
  Sun, 17 Nov 2002 12:49:05 -0800
  put a new throttle switch in yesterday, van runs much better, but still dies after about a minute or so when cold. so i...
• Re: Video: TVS Test Light Driving. Discovered Whistle Sound? What is it?
  Historical mailing list - OlRivrRat
  Mon, 25 Jun 2012 09:08:52 -0600
  ...lead to TVS + , LED goes on, throttle at rest, throttle > valve > switch closed, and goes off, throttle opened TVS open. Most > importantly, > for my...
• decelerator switch?Re: Clutch Problems?
  Historical mailing list - Jeff Oxroad
  Wed, 16 Nov 2005 18:06:20 EST
  ...My guess would be the adjustment or failure of throttle valve/deceleration/idle switch (Bentley 24.23). I'm guessing. But what's anybody...
• Re: Idle Relay - Idle Valve match?
  Historical mailing list - John Bange
  Sun, 17 Aug 2008 23:06:28 -0700
  ...pressure switch BRN - ground GRY - coolant temp sensor RED/BLU - throttle valve switch WHT - output to idle valve YEL - output to idle valve GRN...
• Re: Video: TVS Test Light Driving. Discovered Whistle Sound? What is it?
  Historical mailing list - neil n
  Sun, 24 Jun 2012 22:27:50 -0700
  ...lead to TVS + , LED goes on, throttle at rest, throttle valve > > switch closed, and goes off, throttle opened TVS open. Most importantly, > > for my...
• Re: Rough running until engine warm????
  Historical mailing list - Chuck Mathis
  Fri, 7 Apr 2000 13:37:44 EDT
  Doug, Check the throttle position switch (or switches) to make sure it's working correctly in the idle position. If you have the dual...
• High idle issues
  Historical mailing list - Rene Ditton
  Wed, 26 Aug 2009 15:02:33 -0700
  ...It shows 4.93 volts @ throttle valve switch connector. Switch appears to be OK, closed throttle switch shows zero ohms, open shows open. What...
• Re: WTB: EVAP charcoal canister
  Historical mailing list - Neil N
  Sat, 23 Aug 2014 12:32:21 -0700
  ...controlled by vaccum port that opens when throttle is opened I > believe.. > Subaru by vacuum switching valve . > and it can be plumbed and controlled...
• Bob Donalds big valve engine--yet another update (WAY LONG)
  Historical mailing list - Marc Perdue
  Mon, 27 Jun 2005 22:11:05 -0400
  ...Any ideas? Pins 6 and 11, Throttle Switch: 6.2 ohms--I didn't check it at idle or full throttle because my arms...
• My little Road Trip (Letting sleeping Dogs Lie)
  Historical mailing list - MilosKitchen
  Thu, 1 Jul 2004 18:11:14 -0400
  ...Of course I did have to remove the throttle valve to adjust the throttle switch (too much oily goo), but with all connected, gee...
• Re: Slight over run popping from exhaust..84 (inline VW with Digifant )
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 3 Aug 2009 22:28:27 -0700
  ...So check that for sure - any throttle position switch that it might have, or even .........dragging throttle cable.......doesn't return fully to idle...
• Re: My Westfalia has a "frog-powered" engine - HELP!
  Historical mailing list - kenneth d lewis
  Fri, 11 Dec 1998 08:46:23 EST
  ...adjust throttle "switches" and free butterfly valves $65.50 > >I spent $256.00 yesterday on a tune up and cleaning of my throttle >body...
• Re: CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
  Historical mailing list - neil n
  Wed, 27 Jun 2012 10:45:21 -0700
  ...Right? Thinking that wire from idle stabilization module to junction at throttle valve switch might be affecting the ECU, I disconnected the Idle Stabilization...
• Re: Some Engine Conversions (fomerly "TO WATERBOXER OR NOT"??)
  Historical mailing list - Robert Lilley
  Mon, 10 Jan 2000 09:22:33 EST
  Now that I have most of my problems worked out (Computer, O2 sensor, AFM, Throttle switch, Hall sensor, coil, spark plug wires, tight valves...
• Re: 84 running issue solved?
  Historical mailing list - Eric Caron
  Tue, 31 May 2022 12:16:16 -0400
  ...Last year I dealt with stalling issues and eventually found that the throttle switch was worn out. I replaced the throttle body with the...
• ISV questions, help needed
  Historical mailing list - Roger Reynolds
  Wed, 6 Nov 2002 16:28:08 EST
  ...My valve will vibrate and hum for about three seconds after the switch is turned on then stop. Bentley says the resistance across the...
• Re: 28.8 MPG
  Historical mailing list - ROBERT DONALDS
  Tue, 31 Aug 2004 20:37:08 -0400
  ...control valve circuit; Two on the rubber tube and 2 on the > grommet on the center plenum and ISCV. > > > I took the throttle body...
• Re: Idle Control Valve '87 Westy
  Historical mailing list - Nigel Bennett
  Tue, 10 Apr 2001 09:45:19 +0200
  ...and adjust my throttle switch as best I could and then threw out the idle control unit so that the valve would not be...
• Re: Computer woes?
  Historical mailing list - John Anderson
  Mon, 9 Jul 2001 11:56:09 -0400
  ...switch on the P/S is closed. But in reality with a properly adjusted system, it functions all the time. The old air valves...
• Re: more idle issues revisited
  Historical mailing list - Dennis Haynes
  Tue, 16 May 2006 22:56:29 -0400
  ...i have replced the idle contol > unit, > stabilizer, and i have tinkered with all grounds and throttle switch, > nothing has worked. when my idle...