[W126 Coupe] engine will not rev past 5,000 rpm

[Sharan Bains]

There is a 3-pin block bolted on to the inlet manifold towards the front, 
near the cold start injector.

The centre pin should be permanent Ground. The pins on either side : one 
will be ground when the throttle is fully closed and the other will be 
ground when throttle is fully open.


talbir

>From: Jim Nowak <jjnowak_32503 at yahoo.com>
>Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>Subject: Re: [W126 Coupe] engine will not rev past 5,000 rpm Date: Mon, 20 
>Jun 2005 20:24:40 -0700 (PDT)
>
>Does anyone know if a bad throttle position switch can
>hinder the engine in the upper rpm range?  My engine
>hts a wall at 5,000 rpm and will rev no further.  Any
>ideas?  How do you test the TPS to make sure it is
>working properly?
>
>
>Jim
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