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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 Hall control unit.

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

  • Re: Weird "idle" problem
    Historical mailing list - Stuart MacMillan
    Thu, 16 Oct 2014 16:50:27 -0700
    ...So, is it possible for a bad Idle control >unit to cause this? It seems odd that an engine can run at 3000 with...
  • Fw: Question-Oxygen Relay?
    Historical mailing list - Randy C
    Tue, 5 May 2020 17:50:19 +0000
    ...ordered from bus depot-hope it's my issue), the hall control unit is to the right of the idle stabilizer. The next item...
  • Re: Starting Problem
    Historical mailing list - Norm - RoweBoat
    Fri, 23 Apr 2004 20:59:44 -0700
    ...The first one I tried (disconnecting the idle stabilizer control box/Hall unit) made no difference. Upon looking around for additional clues and trying...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - David Kao
    Thu, 26 Jul 2007 08:43:56 -0700
    ...Upon seeing a pulse from the Hall sending unit the ECU > >then > >cuts off the current momentarily. The ignition coil, an inductor, will > >react...
  • Engine Cutout
    Historical mailing list - John Clavin
    Wed, 2 Jan 2002 22:55:44 -0600
    ...Coil - resistance checks ok per Bentley (are there other tests?) Hall Control Unit and Sender - pass all voltage and operating tests per Bentley Cap...
  • Re: Engine Cutout
    Historical mailing list - Joseph Fortino
    Thu, 3 Jan 2002 07:41:44 -0800
    ...Coil - resistance checks ok per Bentley (are there other tests?) > > Hall Control Unit and Sender - pass all voltage and operating tests > per Bentley > > Cap...
  • Re: 80 vanagon CA emission"gremlins "
    Historical mailing list - Beth Young
    Sun, 26 Jan 1997 16:17:59 -0800 (PST)
    ...You can check the Hall Control Unit with a voltmeter; the procedure is spelled out in all the manuals and runs to 7 or...
  • Swap Update 2
    Historical mailing list - KENWILFY
    Mon, 11 May 1998 18:35:07 EDT
    ...like is in a normal Vanagon and then wire in the Hall unit in order to get the thing running. Some things I was...
  • Re: Digifant Newbs: Vanagon ProTraining Digifant Manual. Worth Getting!
    Historical mailing list - mark drillock
    Wed, 13 Jun 2012 06:38:12 -0700
    ...sensor like the Vanagon. > The Digifant II also has a Hall Ignition Control Unit. Digifant I has > a throttle position potentiometer, an ignition coil...
  • A long strange ECU story ...
    Historical mailing list - Beutler, Art (AZ75)
    Fri, 14 Aug 1998 09:59:53 -0700
    ...new hall sensor) sometimes enough to cause the engine to stop. Since on the (now infamous) Digifant system the timing is controlled by the...
  • Re: '80 Calif. Flooding Problems
    Historical mailing list - Tom Young
    Fri, 15 Oct 1999 06:52:09 -0700
    ...There is a Hall control unit, but no idle stabilizer. > Anyone seen anything like this? I assume I should time the engine (once > its...
  • Re: CA 81-83 air cooled Fuel Injection & Ignition System
    Historical mailing list - Sean Garrett
    Mon, 23 Sep 2002 14:14:25 -0700
    ...191-905-351-B, Hall Control unit, transistorized coil ignition unit > 8. 251-906-083, Idle stabilizer > 4. 070-971-131-A, transistorized ignition...
  • Re: Technical question re: Injector firing signal
    Historical mailing list - Scott Daniel - Turbovans
    Wed, 8 Oct 2008 16:19:05 -0700
    ...re "If you get sparks that means the Hall Effect> Unit is working in sending the signal to the ECU. " - not necessarily so. I...
  • '80 Calif. Flooding Problems
    Historical mailing list - John Rossi
    Thu, 14 Oct 1999 22:47:16 -0700
    ...There is a Hall control unit, but no idle stabilizer. Anyone seen anything like this? I assume I should time the engine (once its...
  • Re: Wierd (Ignition?) Problem...
    Historical mailing list - Jeffrey Schwaia
    Thu, 16 Mar 2006 13:46:20 -0800
    ...It could be as simple as a wire in the system losing contact momentarily, to the Hall Unit actually becoming faulty. Cheapest route to...
  • Re: Technical question re: Injector firing signal
    Historical mailing list - Jake Beaulieu
    Thu, 9 Oct 2008 13:33:48 -0700
    ...Im getting spark to all my cylinders, then the hall > distributor (AKA ignition control unit) is functioning > properly. yes or no?? > > where does the...
  • Re: 85 vanvagon 1.9 electrical prob
    Historical mailing list - David Beierl
    Wed, 24 Apr 2002 08:52:36 -0400
    ...There's a timing output to the ECU (engine control unit, big box of tricks forward of left taillight) but no inputs from it...
  • Re: Arduino and Vanagons
    Historical mailing list - Tom Carchrae
    Thu, 14 Nov 2013 11:01:04 -0800
    ...I find > this an interesting thread. > > An image from my Digifant pro training manual showing labelled pin > outs of ISV control unit: > > > https://lh5...
  • Re: Technical question re: Injector firing signal
    Historical mailing list - Scott Daniel - Turbovans
    Thu, 9 Oct 2008 17:57:33 -0700
    ...Im getting spark to all my cylinders, then the hall >> distributor (AKA ignition control unit) is functioning >> properly. yes or no?? >> >> where does the...
  • Re: What next? ... GREMLINS STILL OCCUPY 80 CA VANAGON
    Historical mailing list
    Thu, 30 Jan 1997 17:47:42 -0800
    >| > This weekend I'm going to remove the distributor and take a look at >| > the hall control unit wire that reside in the black...
  • Re: Power Steering Relay
    Historical mailing list - Darrell Boehler
    Sun, 28 Jan 2001 16:23:15 -0600
    ...put on the pump and it signals the iscu (idle stabilizer control unit ) so it can increase idle rpm. Power supplied to these relays...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - David Kao
    Wed, 25 Jul 2007 21:11:37 -0700
    ...Upon seeing a pulse from the Hall sending unit the ECU then cuts off the current momentarily. The ignition coil, an inductor, will react...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - Scott Daniel - Shazam
    Thu, 26 Jul 2007 11:20:38 -0700
    ...Upon seeing a pulse from the Hall sending unit the ECU >then >cuts off the current momentarily. The ignition coil, an inductor, will >react...
  • Re: Technical question re: Injector firing signal
    Historical mailing list - David Kao
    Wed, 8 Oct 2008 14:36:36 -0700
    ...If you get sparks that means the Hall Effect Unit is working in sending the signal to the ECU. If the ECU is not...
  • My Syncro died
    Historical mailing list - Bob Gourley
    Tue, 7 Sep 1999 18:49:46 -0700
    ...When bridging #3 and # 13 on the control unit connector, the fuel pump does not hum. I want to thank Debi and others who...
  • Conclusion to story of setting Idle
    Historical mailing list - James R. Gilbert
    Tue, 30 Jun 1998 15:08:11 -0400
    ...switch that was totally leaving the HALL unit in the dark. There are about 3 switches controlling the intake, I think, in addition to...
  • Re: Put rebuilt 1.9l in, now my injectors won't spew, or squirt, or
    Historical mailing list - Robert Keezer
    Thu, 21 Mar 2002 01:47:18 -0800
    The Hall control is the ignition not injector control system. You need(page to check that you have battery voltage at terminal 86 and...
  • Re: 85 1.9L died on highway, won't start
    Historical mailing list - Vince S
    Sat, 11 Sep 2004 13:45:09 -0700
    ...500 miles ago, it's likely the coil? or the > hall control unit? How would I diagnose something like this?) > > Thanks for your help...
  • Re: Engine Cutout
    Historical mailing list - Laurence Smith
    Thu, 3 Jan 2002 16:54:33 -0500
    ...Coil - resistance checks ok per Bentley (are there other tests?) Hall Control Unit and Sender - pass all voltage and operating tests per Bentley Cap...
  • Re: Wierd (Ignition?) Problem...
    Historical mailing list - Kurt Camealy
    Thu, 16 Mar 2006 15:57:09 -0500
    ...It could be as simple as a wire in the system losing contact momentarily, to the Hall Unit actually becoming faulty. Cheapest route to...
  • Re: 88GL - Intermittent Failure to Start Continues
    Historical mailing list - SDF ( aka ;jim lahey' - Scott )
    Sun, 8 Jun 2014 19:56:53 -1000
    ...well. > > When I tested power on the Hall sender - it was good. > > When I tested ignition control and the coil - both appeared good. > > Yet...
  • Re: Wet weather power loss
    Historical mailing list - David Beierl
    Sat, 7 Apr 2001 02:10:49 -0400
    ...When idling, the idle stabilizer unit constantly adjusts input airflow to maintain constant rpm. It uses an electronic control that drives an air valve...
  • Re: Idle stabilizer
    Historical mailing list - David Beierl
    Sat, 12 Jan 2002 15:33:16 -0500
    ...retards the output pulses (to the ignition controller) relative to the input pulses from the Hall Generator, so as to maintain a stable idle...
  • Vanagon Syndrome Update
    Historical mailing list - Keith Ovregaard
    Wed, 12 Oct 2005 20:15:50 -0700
    ...What is that supposed to mean, 430 to 20ma range?) Idle Stabilizer control unit (contacts are fine) Throttle valve switch adjustment- I need to...
  • Re: Vanagon Stalls Out While Driving
    Historical mailing list - madvws
    Mon, 28 Apr 2025 00:05:36 +0000
    ...Yes, all 4 injectors are wired in parallel and all fire at the same time.The hall unit in the distributor feeds pulses to...
  • Re: No start/no spark
    Historical mailing list - TJ Hemrick
    Sun, 30 Oct 2011 14:34:19 -0400
    I heard the FP relay and the idle stabilizer control valve cycle every 90 degrees of rotation so I'm taking the Hall sensor...
  • The details of Motronic
    Historical mailing list - Alex Towner
    Wed, 1 Oct 2003 00:58:31 -0400
    ...Knock control: The Motronic control unit has accurate information on crankshaft position and firing order so it is possible to determine which cylinder is...
  • Re: Idle stabilizer
    Historical mailing list - Don & Christina Preston
    Thu, 10 Jan 2002 08:54:03 -0800
    ...Positioning Switch (bottom of the AFM Hall Sender Unit (in distributor) I pulled the Idle Stabilizer (switch? controller?) behind the rear-right tail light...
  • Re: DEAD in my garage on New Year's Day
    Historical mailing list - John Lauterbach
    Sat, 1 Jan 2000 15:59:17 -0500
    ...By ignition control module, are you referring to what is listed on Page 97.55 of Bentley as "TRNSTR IGN CNTRL UNIT" If so...
  • Re: It's time to hit that idle Stabilizer on the head!!!
    Historical mailing list - T.M.
    Wed, 5 Sep 2007 15:49:02 -0400
    ...a working unit. Yep, that's what I thought and wrote.. > The one I have (the pictured one) is kaput. A German words fits...
  • Re: Hall sender + ignition control unit electronics
    Historical mailing list - Don Hanson
    Tue, 19 Jun 2012 08:57:17 -0700
    Thanks Rob..that does look handy. Don Hanson On Tue, Jun 19, 2012 at 8:45 AM, Rob <becida@comcast.net> wrote: > At 6...
  • Re: 85 1.9L died on highway, won't start
    Historical mailing list - Aerowolf
    Sat, 11 Sep 2004 15:09:08 -0500
    ...500 miles ago, it's likely the coil? or the > hall control unit? How would I diagnose something like this?) > > Thanks for your help...
  • Re: High Speed Fan
    Historical mailing list - David Hally
    Fri, 9 Jul 2004 22:18:49 -0700
    ...tank cap and radiator fan switch/sensor plus a new gauge sending unit. After installation of the level sensor and cap, the temp doesn...
  • Re: Got dem ole lousy idle blues again,mama
    Historical mailing list - Evan Mac Donald
    Tue, 12 Sep 2006 15:53:09 -0700
    ...pipe ,as a unit.Then I swapped a afm,hall control,idle stabilizer.The o2 sensor swapped with the exhaust unit. I swapped the...
  • Bucking, hesitation between 1500 and 2500 RPM when hot
    Historical mailing list - Jerry
    Mon, 9 Feb 2009 17:49:26 -0600
    ...I have a 2.1 Boston Engine installed in MAR 2008 New AFM New Idle Control Unit New 02 sensor New Distributor and Hall...
  • Re: Billy's in the hospital
    Historical mailing list - Ryan Mark Shankland
    Fri, 12 Mar 2004 08:33:34 -0700
    I'm not sure I heard the whole saga, but you may have the bad idle control unit, it's a $230-300 VDO...
  • Re: Megasquirt FI Control and Vanagons
    Historical mailing list - Damon Campbell
    Sat, 20 Sep 2003 10:55:13 -0700
    ...From what i've read (not a whole lot), they are developing solutions to get signals from our hall senders. They have working units...
  • Re: Vanagon Syndrome Update
    Historical mailing list - Larry Alofs
    Thu, 13 Oct 2005 07:59:41 -0500
    ...What > is that supposed to mean, 430 to 20ma range?) > Idle Stabilizer control unit (contacts are fine) > Throttle valve switch adjustment- I need to...
  • Won't idle but getting combustion-'88 2.1L
    Historical mailing list - Barrett Willet
    Fri, 29 Jul 2005 22:39:48 -0700
    ...Checked for corrosion at Idle Stabilizer Control Unit - none found Cleaned and replaced (as needed) grounds under the coil and on left head Added...
  • Re: Update on stalling '87
    Historical mailing list - Larry Alofs
    Wed, 4 Jul 2007 18:58:34 -0500
    ...temp II sensor and idle control valve. I have also >tested the van with a good idle stabilizer unit and have disconnected the oxs...
  • Re: The details of Motronic (long)
    Historical mailing list - Robert Keezer
    Wed, 1 Oct 2003 12:25:48 -0700
    ...Knock control: The Motronic control unit has accurate information on crankshaft position and firing order so it is possible to determine which cylinder is...
  • Re: The details of Motronic (long)
    Historical mailing list - Robert Keezer
    Wed, 1 Oct 2003 20:04:02 -0700
    ...Knock control: The Motronic control unit has accurate information on crankshaft position and firing order so it is possible to determine which cylinder is...
  • Re: 1990 2.1L Digijet European Caravelle wiring diagrams
    Historical mailing list - T.M.
    Mon, 3 Sep 2007 01:01:57 -0400
    ...The quirk is that my Digijet system has an Idle Stabilizer Control unit (ISCU) and Idle stabilization valve on top of the motor just...
  • Re: Idle Relay - Idle Valve match?
    Historical mailing list - John Bange
    Sun, 17 Aug 2008 23:06:28 -0700
    ...to idle valve YEL - output to idle valve GRN - hall generator (RPM signal) The unit does indeed watch the coolant temp sensor, so that...
  • Re: Euro-Drive: 84 Volkswagen vanagon, No-start
    Historical mailing list - jimkim
    Mon, 5 Apr 1999 07:28:24 -0700
    ...with these two items entire afc system can be checked electrically at disconnected multi-pin connector of control unit. with patients you will be...
  • no spark, no gas, no love
    Historical mailing list - Matt Ratto
    Mon, 2 Dec 2002 17:34:43 -0800
    ...negative terminal is connected to the ignition control unit, which is connected to ground and the Hall sensor on the distributor. I'm not...
  • Re: Aye my bucko
    Historical mailing list - John Rodgers
    Wed, 27 Nov 2002 09:37:45 -0600
    ...it's not the AFM, or Hall sender, or Hall control, or injectors, or fuel pump, or filter.. Everything in the system that I...
  • Re: '80 Calif. Flooding Problems
    Historical mailing list - Bulley
    Fri, 15 Oct 1999 15:26:36 -0400
    ...There is a Hall control unit, but no idle stabilizer. > Anyone seen anything like this? I assume I should time the engine (once > its...
  • Re: Swap Update 2
    Historical mailing list - Don Hundt
    Mon, 11 May 1998 16:04:01 -0700
    ...like is in a normal Vanagon and then wire in the Hall unit in order to get the > thing running. > Some things I was...
  • Re: Wet weather power loss
    Historical mailing list - Helen Fahy
    Sat, 7 Apr 2001 06:15:34 -0400
    ...When idling, the idle stabilizer unit > constantly adjusts input airflow to maintain constant rpm. It uses an > electronic control that drives an air valve...