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Volkswagen Rabbit, Jetta, Scirocco, Convertible: 1975-1984 (A1) 84 rocco frequency valve

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Registered: 08/19/11
84 rocco frequency valve
Posted: Nov 9, 2013 8:19 PM
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My 84 with cis-e has power to the lambda relay (frequency valve pin 87A) when the car is off; but turns off when car is started (fuel pump energized). Is this a controller problem or open circuit from controller? Works fine when I jump it to switched power. If it is a bad controller issue can I just jump it for the time being? Have not checked pin out from controller yet. I tested new Bosch relay and it seems fine. The ox. sensor side is working (pin 87). Also checked grounds at 5th injector. Thanks for your help guys. ;Lester.

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