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[WERNER_HAUSSMANN at HP-Loveland-om2.om.hp.com]

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I have converted a carburetted, 4-cylinder, '75 MGB to Bosch L-Jetronic 
Fuel Injection.  The car works fine and there are no problems with the 
conversion.  The purpose was mostly to see if it could be done, and to 
improve on the mixture accuracy.  No lambda sesor is used.

The L-Jetronic uses the trottle position to change the A/F ratio.  At about 
2/3 full trottle a switch closes and enriches the mixture.

Later versions of the Bosch system used manifold vacuum to activate a 
switch.  I want to change my system to this method. I want to enrich the 
mixture when the manifold vacuum drops.


Does anyone have the Bosch number for such a switch?  Where can I get one? 
Or what kind of car has this part so I can get it from a junk yard?

Any help is appreciated.


Werner