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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 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.

• 1987 High Idle
  Historical mailing list
  Tue, 30 Apr 1996 11:46:07 -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...
• Surging between 1700 and 3000 rpm
  Historical mailing list - mordo
  Sat, 31 Mar 2007 12:15:46 -0400
  ...I am thinking that the throttle valve switch is a possible culprit. My question now is what is "full throttle"? If the switch is...
• Re: Won't accelerate
  Historical mailing list - Dennis Haynes
  Sun, 6 Nov 2011 08:28:20 -0500
  ...One thing I noticed, the idle switch is clicking off a little late, (the one under the Throttle Valve) I have no idea what...
• Re: Cold Morning Puzzlement Part Deux
  Historical mailing list - Chuck Mathis
  Thu, 17 Feb 2000 06:30:49 EST
  In a message dated 2/16/00 9:51:46 PM, bloss@enter.net writes: << Does your throttle switch go on when you take...
• Running rich.....me too
  Historical mailing list
  Wed, 17 Oct 2007 09:31:58 -0400
  ...Although it may have been doing so for a while now, it has really been bad since I installed a new throttle valve switch...
• Re: Won't accelerate
  Historical mailing list - mark drillock
  Sat, 5 Nov 2011 12:29:32 -0700
  ...thing I noticed, the idle switch is clicking off a little late, (the one under the Throttle Valve) > > I have no idea what causes...
• Re: Arduino and Vanagons
  Historical mailing list - Brett Ne
  Thu, 14 Nov 2013 17:24:56 -0800
  ...throttle valve switch 1 PWM output: idle speed stabilizer valve The ICU adjusts the PWM signal to the idle air valve about 4 times...
• Normal idle! Hallelujah!
  Historical mailing list - david hardy
  Thu, 5 Jan 2012 11:20:09 -0700
  ...s really easy, while you have the throttle body out, to make sure your throttle position switch if working, and to adjust it. David...
• Re: How long does it take your Vanagon to warm up
  Historical mailing list - Dennis Haynes
  Sat, 14 May 2005 21:23:17 -0400
  ...It is related to throttle-body switch that rests (stangely enough) under the throttle body. I have adjusted mine several times but something keeps...
• Re: Throttle switches on 1.9 WBX
  Historical mailing list - Karl Wolz
  Fri, 14 Apr 2000 08:19:56 -0700
  In 1985 the switch configuration was changed. Instead of two switches on top of the throttle body there is now a single switch activated...
• Getting a handle on Idle problems...
  Historical mailing list - Robert Lilley
  Sun, 20 Apr 2003 23:11:02 EDT
  ...Throttle switch: -When throttle is closed it turns control of the idle over to the idle control module from the ECU. O2 Sensor: -gives...
• Re: CO Adjusting Screw. PO Set it All The Way In? Base Setting?
  Historical mailing list - David Beierl
  Thu, 21 Jun 2012 21:23:48 -0400
  ...Seems to me the ECU > supplies both the - and + to the throttle valve switch > plug. (otherwise why can one measure voltage there, ignition on...
• Re: Idle Control Issues
  Historical mailing list - Craig Forney
  Sat, 20 Jul 2013 22:55:32 -0700
  ...and increases idle speed a bit when the throttle is closed (assuming the throttle position switch is actually closed). When you step on the...
• Re: Intermittent high idle - able to make "go low"
  Historical mailing list - thewestyman
  Wed, 24 Jun 2015 13:30:46 -0700
  ...As you look down on the switch that's under the throttle valve. Zoltan -----Original Message----- From: Steve Williams Sent: Wednesday, June 24, 2015...
• 85 Vanagon throttle valve switch -- update
  Historical mailing list - Kyle Hamilton
  Tue, 29 Jun 2004 19:51:41 -0400
  ...Half a can of brake cleaner, and a quarter can of carburetor cleaner later, we had a throttle body that was /much/ cleaner, and...
• Idle Air Control Valve
  Historical mailing list - Dan N
  Fri, 10 Mar 2017 08:12:52 -0800
  ...adjusted lower... *things done:* - clean and check throttle body - replace and adjust the TPS (throttle body switch) - replace the temp2 sensor - replace oxygen sensor...
• Problem with 2.1L FI
  Historical mailing list - Vanagon Man
  Sat, 9 Feb 2002 15:51:29 -0500
  ...Checked throttle position switch...........now is set correctly Switched idle stabilizer relay with another...same result. Swapped idle stabilizer valve with another...same result...
• Re: The two throttle valve switches, redux
  Historical mailing list - Michael Elliott
  Tue, 25 Sep 2007 22:27:27 -0700
  ...Lemme try again. >> >> On the earlier 1.9L's there are two switches on the throttle valve. One >> closes when the foot is off...
• Hi idle, No deceleration
  Historical mailing list - Dan Krautkremer
  Tue, 24 Mar 2009 16:41:00 -0700
  ...Tested the throttle valve switch. It tested bad. Replaced it with a known good one.� Same problem, only it is constant now. Any ideas...
• Re: GoWesty Engine Management system
  Historical mailing list - Neil N
  Fri, 6 Nov 2020 17:52:39 -0800
  ...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: 1987 High Idle
  Historical mailing list
  Fri, 3 May 1996 18:20:30 -0400
  ...throttle position switch. > > I had this exact same thing happen this morning, but I don't have an extra Idle Stabilizer Control Valve to...
• Re: Idle switch
  Historical mailing list - Mike Collum
  Mon, 25 Dec 2006 14:05:14 -0500
  ...switch underneath) > > > > Ronald Michaels wrote: > >> Hi - >> >> The throttle valve switch has failed on my 85 Westy. This switch is >> located >> under the throttle rather...
• 87 Westi, Idle problems...
  Historical mailing list - Don Record
  Mon, 14 Aug 2000 05:51:12 EDT
  ...usual suspects for this problem are throttle switch, O2 Sensor, TempII Sensor, Idle controller, and Idle stabilizer valve. The van runs worse with the...
• Re: Cold Engine/high idle
  Historical mailing list - Randy Herd
  Wed, 7 Jun 2000 12:21:12 MDT
  Katy, A stuck throttle switch would probably not cause a high idle when the engine is cold. Normally it would either not idle when...
• Wiring Harness Help
  Historical mailing list - Dave Baker
  Sun, 5 Jan 2003 15:52:34 -0600
  ...the heater plug for the aux air valve and the wires for the idle throttle switch. Does any list vendor sell this already made...
• Re: more idle issues revisited
  Historical mailing list - John Bange
  Sat, 20 May 2006 11:45:15 -0700
  ...i have replced the idle contol unit, > stabilizer, and i have tinkered with all grounds and throttle switch, > nothing has worked. when my idle...
• Re: HELP - No idle when cold
  Historical mailing list - John Rodgers
  Wed, 1 Dec 1999 17:30:38 -0600
  ...I am told that the > throttle valve switch can cause a similar problem. I checked and > adjusted the switch per the Bentley but the...
• Re: Throttle Valve Switch
  Historical mailing list - Jonce Fancher
  Wed, 14 Sep 2005 22:19:07 -0400
  ...Throttle Valve Switch >> I'm hoping I phrase this properly. I have an 84 Vanagon, 1.9 >> I bought it running very poorly, exhaust...
• Re: idle problems
  Historical mailing list - Dennis Haynes
  Mon, 23 Aug 2010 00:11:30 -0400
  ...surging idle, throttle body tight and returns to stop every time. switch ok and working. all idle booster and cold start valves have the...
• Re: Idle Air Control Valve
  Historical mailing list - David Beierl
  Sat, 11 Mar 2017 00:51:36 -0500
  ...You should never adjust the idle speed screw on the throttle body unless the idle speed stabilization is disabled by unplugging the control valve...
• Re: purpose of throttle valve adj.
  Historical mailing list - Joe Romas
  Sat, 18 Nov 2000 10:36:28 -0500
  ...purpose of throttle valve adj. > Here is a question for those who've delved more deeply into the mysteries of > the throttle valve and...
• Re: Idle Stabilizer System Delete. Cause Bog Off Idle?
  Historical mailing list - Dennis Haynes
  Sun, 12 Apr 2015 09:19:52 -0400
  ...Excessive valve deposits, poor injector spray patterns and even worn valves/guides are common culprits. Unplugging the throttle switch will completely remove that as...
• Re: Idle Stabilizer Valve - Later UPDATE: problem *NOT* solved!
  Historical mailing list - Tim Demarest
  Wed, 24 May 2006 17:21:58 -0400
  ...it's amazing what gunk between the throttle plae and throttle body can do to the switch gaps. Tim At 11:54 AM 5...
• Re: Throttle Body
  Historical mailing list - John-Reed Maffeo
  Wed, 16 Aug 2000 12:56:56 -0700
  ...If the throttle stop is not adjusted correctly the throttle valve can stick in the throttle bore. The actuator assembly, to which the accellerator...
• Won't accelerate
  Historical mailing list - HotelWestfalia
  Sat, 5 Nov 2011 12:13:40 -0700
  ...One thing I noticed, the idle switch is clicking off a little late, (the one under the Throttle Valve) I have no idea what...
• Re: The two throttle valve switches, redux
  Historical mailing list - Richard A Jones
  Wed, 26 Sep 2007 07:28:45 -0600
  > We know that the ECU > decides that a low Pin 4 + rpm < 1500 means kill the fuel. Mike: Is this a typo or do...
• Re: Idle Surge
  Historical mailing list - John Rodgers
  Fri, 28 Oct 2011 07:25:55 -0500
  ...TB - throttle body TPS - throttle position switch PO - previous owner POV - previously owned vanagon (vehicle) ISV - idle stabilizer valve ISC - Idle stabilizer control (box...
• Re: Idle switch
  Historical mailing list - Frank Condelli
  Tue, 26 Dec 2006 07:16:59 EST
  ...The throttle valve switch has failed on my 85 Westy. This switch is located under the throttle rather than above the throttle body as...
• CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
  Historical mailing list - neil n
  Tue, 26 Jun 2012 18:23:05 -0700
  ...As for the throttle valve switch, I connected a test 12V LED. The logic is reverse, but the test light shows that the TVS...
• Pulsating Idle when cold
  Historical mailing list - Tim Marciniak
  Sun, 10 Apr 2005 21:11:56 -0500
  ...Checked and adjusted the throttle valve switch Checked an adjusted ignition timing New airfilter Fuel pressure ok. Checked for false air leaks Control valve...
• Re: Throttle body/idle stabilizer woes...
  Historical mailing list - Marla Stelk
  Wed, 17 Sep 2003 11:36:15 -0400
  ...Took apart the throttle body and cleaned and >lubricated everything....set the switch up...but i am having a vacuum >leak now...it seems...
• Re: Idle Problem 1987 2.1 Van Automatic
  Historical mailing list - Evan Mac Donald
  Sun, 11 Nov 2007 09:58:23 -0800
  No, really, you have two quick places to look - at the throttle plate / body, and at the idle / WOT switch. If the throttle plate...
• Re: Intermittent high idle - able to make "go low"
  Historical mailing list - Tyler Hardison
  Wed, 24 Jun 2015 13:52:53 -0700
  ...As you look down on the switch that's under the > throttle valve. > Zoltan > > > -----Original Message----- > From: Steve Williams > Sent: Wednesday, June 24, 2015...
• Terpsicorian Shifter
  Historical mailing list - John Rodgers
  Mon, 27 May 2002 17:40:59 -0500
  ...So, do I have a throttle switch problem of some sort. I thought the switch shut off the fuel basically, when the foot was...
• Re: rebuilding throttle body
  Historical mailing list - Kenneth D Lewis
  Fri, 18 May 2001 19:47:47 -0400
  ...The result is an inconsistent idle > and > problems setting the throttle position switch because the valve does > not > always return to the same position...
• Re: Idle Surge
  Historical mailing list - David Beierl
  Mon, 5 Aug 2013 14:45:50 -0400
  ...Check with your meter that the closed-throttle switch opens (voltage on the line goes up to ~5 V) when you open the throttle...
• Idle stabilizer question...
  Historical mailing list - Jesse and Monica Johnson
  Sat, 13 Sep 2003 18:32:02 -0400
  Hello Everyone, When i was swapping out my throttle position switch...i noticed that my idle stabilizer valve was not humming....so i checked...
• Re: Idle Control Issues
  Historical mailing list - Craig Forney
  Sat, 20 Jul 2013 22:21:39 -0700
  ...and increases idle speed a bit when the throttle is closed (assuming the throttle position switch is actually closed). When you step on the...
• loping idle fixed! (finally)
  Historical mailing list - Richard C Welsh
  Mon, 10 Jan 2000 08:55:00 -0500
  ...strip on the throttle control valve had swung out of position and wasn't making contact with the tiny switch that tells the ECU...
• ARRGHHH ... not the Throttle Postion Switch
  Historical mailing list - Gregory Smith
  Sun, 12 Jan 2003 20:37:26 -0800
  ...It's the hose that has the fancy plastic clamps and the little black & white valve inline. Gregory Smith '84 Vanagon Olympia, WA __________________________________________________ Do...
• Re: Surging 1.9 Vanagon
  Historical mailing list - Tim Demarest
  Tue, 3 Oct 2006 10:28:38 -0400
  ...On my '85, gunk inside the throttle body was preventing the throttle valve from closing all the way, so the idle switch was never...
• Re: 84 vs 85 Digijet
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 6 Apr 2009 19:02:18 -0700
  ...vacuum switching valve or valves in the right front corner of the engine compartment, whether you have those or not, won't make any...
• Throttle Switch Thrombosis
  Historical mailing list - Steve Hoge
  Fri, 24 Nov 95 18:32:08 0800
  ...Unplugging, cleaning and reseating the connector between the throttle valve switch and the ECU (done at midnight under a streetlamp...) *seemed* to help for...
• Re: CO Adjusting Screw, Throttle Valve Switch Test Light Video etc.
  Historical mailing list - Jeff Schwaia
  Wed, 27 Jun 2012 15:13:25 -0700
  ...CO Adjusting Screw, Throttle Valve Switch Test Light Video etc. On 6/27/2012 6:59 AM, Dave Mcneely wrote: > thanks, Jeff, for answering...
• Re: Idle Stabilizer Valve
  Historical mailing list - David Beierl
  Thu, 26 Apr 2001 01:27:32 -0400
  ...If not, or maybe even first, make sure that your throttle is fully closing, and that the closed-throttle switch is set and operating...
• Re: Throttle Switch Thrombosis
  Historical mailing list - Dan Houg
  Fri, 24 Nov 1995 15:26:37 CST6CDT
  ...throttle body and re-set the basic throttle valve position. it is actually an easy job to get it off. i doubt the switches...
• purpose of throttle valve adj.
  Historical mailing list - James Creech
  Sat, 18 Nov 2000 09:50:52 -0500
  Here is a question for those who've delved more deeply into the mysteries of the throttle valve and how it serves the EFI...
• Re: Surging between 1700 and 3000 rpm
  Historical mailing list - Mark Drillock
  Sat, 31 Mar 2007 08:43:58 -0800
  ...I > have tested fuel pressure at the T and it is at spec. > > I am thinking that the throttle valve switch is a possible...
• Re: low compression\rough cold idle-1.9L
  Historical mailing list - Scott Wilson
  Sun, 17 Nov 2002 17:13:24 -0800
  my van has the two switches, i replaced the throttle valve/deceleration/idle switch(according to bently). adjusted it per bently, van runs good...
• Re: Running Without O2 Sensor Question
  Historical mailing list - John Bange
  Sun, 23 Apr 2006 08:54:23 -0700
  ...There is also a fear of it going lean > which can melt valves and pistons. When the full throttle switch is > activated the mixture...