Hi Paul,
    Try the adjustment procedure bentley page 24.51.  The criteria of  880 rpm idle is ok but less rpm  seems to work  better on a
worn throttle body.  The idle system can only increase the idle rpm from the initial setting. What we are after is with a properly
tuned, warmed up engine, pull the idle stabilizer plug from the idle stabilizer and adjust  the big idle screw on the throttle body
for 800- 900 rpm. Plug the connector back on the idle stabilizer and you should be all set and idling at 950 rpm under control of
the idle system.

Darrell

----- Original Message -----
From: "Paul Huffman (by way of Derek Drew <derekdrew@rcn.com>)" <paulhuffman@EARTHLINK.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, December 12, 2000 7:37 AM
Subject: Euro-Drive: 88 Volkswagen Vanagon, Poor-idle

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> _______________________________________________________
>
> 1988 Volkswagen Vanagon
>
> Engine:        2.1 L / 4 cyl / Gas / OHV
> Fuel:          Fuel Injection / efi
> Ignition:      Distributor-Breakerless / hi
> Trans:         4-speed Standard Transaxle
> Mileage:       165,000 miles
> Emissions:     ca
> VIN:           WV2ZB0255JH072164
>
> Symptoms:      Poor Idle Quality
> Occurs:        Always
>
> ____________________________________________________________
>
> Hi All,
>
> I have a problem with this Vanagon Idling too high(app.12
> too 1500) intermittenly. Throttle switches were bad so we
> replaced them. Idle controll motor and controll unit have
> been replaced with known good unit. The ECU has also been
> replaced with good unit with no change.
>
> When the green wire with yellow connector is unpluged (for
> testing the Idle stabl..) Rpm Goes to 2500.
>
> When the Idle Stabl.. is unpluged the idle is normal until
> the engine is restarted.
>
> Any Help is appreciated>
>
> Thanks
>
>
> Paul Huffman
> paulhuffman@earthlink.net
> Owner
> Shadetree Automotive
> San Clemente, California, USA
>
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