In my long experience in the trades, I found that most really good
craftsmen always had "work-arounds" that they used to bypass just such
problems as having to have some manufacturers super high-priced special
super-duper Tool No. XXX#9 to unlock the elephants-trunk In fact, when I
was a working mechanic for an airlinne based in Atlanta, we had among a
number of work-arounds a special shop-built workaround - It was really
and truly the answer to the manufacturers tool - a really live key to
the elephants trunk - a 5 foot steel rod which on one end had welded to
it a blade of a key, and on the other end that handle of the key. That
shop-built workaround to bypass Tool No XXX#9 worked every time -
totally made the new guy in the shop look like and idiot when asking the
tool-room manager for the key to the elephants trunk! Always generated a
lot of heehaw and guffaw. But you get the picture. Except on a few
occasions, work a rounds do pretty good. But sometimes nothing works but
the special tool - like the Sweeney Wrench we used to torque the nut
that kept the propeller on the end of the crankshaft on big prop driven
aircraft engines. It was a big, solid steel, geared torque wrench. Took
a crane to hoist it into place. Once mounted  it had the capacity to
crank up to #7500 foot lbs of torque.

Regards,

John Rodgers
88 GL Driver

Scott Daniel - Turbovans wrote:
> I see.........it's a dedicated Fuel Injection manual.
> hot dog.
> where do I get a "test adapter VW 1315A/2: ?
>
> Have you ever tried to do exactly what they say to do in a book like
> this .........but for some reason you just can't ?
> Like not having some special VW tool or connector  ?
>
> ----- Original Message ----- From: "John Rodgers" <inua@CHARTER.NET>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Wednesday, March 25, 2009 10:58 PM
> Subject: Troubleshooting the Basic Idle Stabilizer System - Manual
> Transmissions- Part I
>
>
>> This is long, but for the record and the archives, so please bear
>> with me.
>>
>> John Rodgers
>> 88 GL Driver
>>
>> In my Digifant FI manual -
>>
>> Part I
>>
>> Vanagon/Type II Fuel Systems - Digifant
>>
>> TROUBLESHOOTING GUIDELINES
>>
>> Poor Idle:
>> a) At operating temperature
>> 1) Throttle Switch
>> 2) Idle stabilizer system
>> 3) Evaporative Emissions System
>>
>> *2) page 115
>>
>> *NOTE !!*
>> This procedure is for vehicles with manual transmissions only! Vehicles
>> with automatic transmissions require that the  rear wheels be off the
>> ground, rear brakes locked, and the transmission in "Drive". Two people
>> are required to do all checks. Please refer to the FI manual itself for
>> additional instructions.
>>
>> Idle Stabilization  - Checking the basic system
>>
>> ___ Engine at operating temperature, oil temperature at least 80C/176F.
>>
>> ___ Throttle Switch connected and functioning properly.
>>
>> ___ All electrical consumers must be off  during checking procedure.
>> Coolant fan should not be running when observing readings.
>>
>> ___ Connect multi-meter US 1119 (or equivalent) to the idle
>> stabilization valve using test adapter VW 1315A/2. Set range of the
>> meter to 2 amp scale (readings will be in milliamperes)
>>
>> ___ Run engine at idle and observe reading. Basic idle value should be
>> 430 +/- 15 mA. If no: the go to Idle Speed/CO Content - Checking and
>> Adjusting.
>>
>> ___ If you have a fixed ( non-fluctuating milliamp reading and the idle
>> is  high - approximately 1100-1200 RPM) , check for signal from terminal
>> 1 of ignition coil at connector plug for Idle Stabilizer Control Unit.
>> Connect US 1115 L.E.D tester between terminals 5 and 17 of connector
>> plug. L.E.D. tester should flash while cranking.
>>
>> If YES: - replace the idle stabilizer control unit and proceed.
>>
>> If NO: - repair open circuit between terminal 1 of ignition coil and
>> terminal 17 of idle stabilization control unit plug.
>>
>> If you have no milliamp reading and idle is low and/or surging, check
>> for power to idle stabilization  control unit from terminal 87 of the
>> power supply relay. Connect US 1115 L.E.D. tester between terminals 5
>> and 14 of idle stabilization control unit plug. L.E.D. tester should
>> come on when ignition is switched on.
>>
>> If NO: repair open circuit between terminal 87 of power supply relay and
>> terminal 14 of the idle stabilization control unit plug.
>>
>> Part II:
>
>
>