Date:         Mon, 2 Oct 2006 21:31:06 -0700
Reply-To:     Resiolute <resiolute@COPPER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Resiolute <resiolute@COPPER.NET>
Subject:      Re: Surging 1.9 Vanagon
Comments: To: Greg Potts <greg@POTTSFAMILY.CA>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=response

Greg,  I don't have those switches on my engine...I see them both in the
Bentley, but none are on my engine.. it's buck naked right there...just the
idle screw on the throttle..?  Lyle
----- Original Message -----
From: "Greg Potts" <greg@POTTSFAMILY.CA>
To: "Resiolute" <resiolute@copper.net>
Sent: Monday, October 02, 2006 7:24 PM
Subject: Re: Surging 1.9 Vanagon


>
> Hi Lyle,
>
> Apparently the throttle position sensor switch was made with a  plastic
> sensor that butts up against a steel adjusting screw, After a  while the
> plastic part wears down and the assembly needs to be pulled  apart and
> adjusted to compensate for the wear.
>
> At least that's how I recall Frank explaining it to me.
> Here's what van-cafe has to say about it:
> T
> hrottle switch and idle control components - The throttle switch must  be
> both in working order and adjusted correctly. With the engine not  running
> and key turned off, you manually operate the throttle arm  back at the
> engine and see if you hear a click just as you move the  throttle on and
> off the idle or relaxed position. If not, then you  should attempt to
> adjust it. The throttle switch must be adjusted  correctly so that the
> idle stabilizer computer (situated behind the  passenger side tail light
> housing) and idle control valve kick into  action when you are in idle
> mode. If the throttle switch is adjusted  correctly and the idle either
> hangs up at high rpms or the vehicle is  prone to stalling, then one of
> those two components is likely at  fault. (Please review Bentley manual
> procedures on testing these two  components). While you are here it's also
> wise to check the throttle  body itself. When you grab the shaft you
> should be able to rotate it  but should not witness significant movement
> if you try to rock it  back and forth.
>
> Good Luck,
>
> Greg
>
> On 2-Oct-06, at 11:26 PM, Resiolute wrote:
>
>> Greg,  What kind of repair,  please explain if possible..?
>> Lyle
>> ----- Original Message ----- From: "Greg Potts" <greg@POTTSFAMILY.CA>
>> To: "Resiolute" <resiolute@copper.net>
>> Sent: Monday, October 02, 2006 1:42 PM
>> Subject: Re: Surging 1.9 Vanagon
>>
>>
>>>
>>> Hi Lyle,
>>>
>>> Same thing happened with my Dad's 85 sunroof the week I had it at
>>> Buses Of The Corn. Frank Condelli was there and he was able to  make  it
>>> better by adjusting the screws on the throttle body.  That  adjustment
>>> made if better for a week or so but then the  problem came  back (which
>>> he warned me about) ... it looks like  the throttle body  will have to
>>> be removed and repaired.
>>>
>>> </Greg>
>>>
>>>
>>> On 2-Oct-06, at 3:18 PM, Resiolute wrote:
>>>
>>>> Greg, It's at idle...when it does it.  I'm buying another new   ground
>>>> strap this afternoon, I had them order it for me.  I  think  most if
>>>> not all is ground related.
>>>> Lyle Lathem
>>>> 1985 Vanagon GL
>>>> ----- Original Message ----- From: "Greg Potts"  <greg@POTTSFAMILY.CA>
>>>> To: <vanagon@GERRY.VANAGON.COM>
>>>> Sent: Monday, October 02, 2006 5:37 AM
>>>> Subject: Re: Surging 1.9 Vanagon
>>>>
>>>>
>>>>>
>>>>> Hi Lyle,
>>>>>
>>>>> Does the surging occur at idle or partial throttle?
>>>>>
>>>>> If at Idle it's a problem with the idle stabilizer circuit.  Possibly
>>>>> a mechanical adjustment is required, or it might be a loose or  broken
>>>>> wire.
>>>>>
>>>>> If at partial throttle, it's "Vanagon Syndrome", a fault inside the
>>>>> AFM. This can be remedied by replacing the AFM or by installing a
>>>>> patch, see www.vanagon.com for more info.
>>>>>
>>>>>
>>>>> Happy Trails,
>>>>>
>>>>> Greg Potts
>>>>> 1973/74/75/77/79 Westfakia "Bob the Tomato"
>>>>> www.pottsfamily.ca/westfakia
>>>>> www.busesofthecorn.com
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 2-Oct-06, at 7:42 AM, Resiolute wrote:
>>>>>
>>>>>> One thing I forgot to mention on our 1.9 engine,  as I said we are
>>>>>> having
>>>>>> problems, with injectors not fireing on the left bank.  We also
>>>>>> once the
>>>>>> engine is warm, and after being on the road for awhile, is a
>>>>>> surging engine.
>>>>>> It idles down, then reves up, idles down and rev's up.. over and
>>>>>> over...?
>>>>>> Any ideas on that problem..?
>>>>>> Thanks in Advance..!
>>>>>> Lyle Lathem
>>>>>> 1985 Vanagon GL.
>>>>>
>>>>>
>>>>> --
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>>>>> 9/29/2006
>>>>>
>>>>
>>>
>>>
>>>
>>> --
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>>> Checked by AVG Free Edition.
>>> Version: 7.1.405 / Virus Database: 268.12.10/459 - Release Date:
>>> 9/29/2006
>>>
>>
>
>
>
> --
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> Checked by AVG Free Edition.
> Version: 7.1.405 / Virus Database: 268.12.10/459 - Release Date: 9/29/2006
>
>