since it's an auto trans vanagon I would be sure to check the lever and
throttle cable at the side of the transmission.
The throttle cable ends in a ball pivot on the trans lever.
I have seen that ball pivot be very rusty, even stuck.
point is........you want to be sure it's not at the trans......whatever
binding or drag you are experiencing.
I haven't see a throttle body to that actually, bind so much from wear that
it wouldn't return to zero throttle.

----- Original Message -----
From: "Mike Collum" <collum@MYFAIRPOINT.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, February 28, 2009 11:42 AM
Subject: Re: 85 vanagon throttle body swap... top mounted vs bottom mounted
TPS ????

> Oh, one other thing, the vacuum hose arrangement is different from early
> to late 1.9s.  One of the throttle bodies doesn't have the vacuum tube.
>  You just have to route the vacuum lines accordingly (see the Bentley).
>
> Mike
>
>
>
> Mike Collum wrote:
>> The switch, on the later model 1.9s (closes at both idle and at full
>> throttle), does the same job as the two switches on the earlier 1.9s.
>> Either TB can be used if you modify the harness to accept the other
>> connector(s).
>>
>> Mike
>>
>>
>>
>> Greg Potts wrote:
>>> Hi Volks,
>>>
>>> I checked the archives but have not seen a complete answer to this
>>> question. ETKA diagrams don't seem to answer it either.
>>>
>>> My Dad's 1985 automatic sunroof vanagon has been having problems with
>>> the throttle linkage. Apparently the problem is at the throttle body.
>>> This morning it hung up at high RPMS and would not dislodge until the
>>> engine lid was lifted and the lever reset by hand. Once it was reset,
>>> everything was fine. I suspect that the brass butterfly is rubbing
>>> against the aluminum casing and the friction has become enough to
>>> overcome the tension of the return spring.
>>>
>>> I have a spare 1.9L engine with a throttle body that is in very good
>>> condition. Unfortunately, the TB on the sunroof van has the throttle
>>> position switches underneath, and this TB has the TPS located on top.
>>>
>>> BEFORE we pull it all apart... is it possible/practical to swap these
>>> units, or should we plan to repair the original TB instead?
>>>
>>> Happy Trails,
>>>
>>> Greg Potts
>>> 1973/74/79 Westfakia "Bob the Tomato"
>>> 1987 Wolfsburg Weekender Hardtop
>>> www.busesofthecorn.com
>>> www.pottsfamily.ca
>>>
>>>
>>>
>>