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    What should be the voltage of a gas pump in a 2004 volkswagon GTI 1.8?

    It currently reads 10.2 and engine will not start..

    +1  Views: 380 Answers: 1 Posted: 12 years ago

    1 Answer

    with the key on , you should see battery voltage at the fuel pump or about 12 volts. have a test light or volt meter is better to the fuel pump 12v wire and see if you have battery voltage for about 2 seconds with key on and also while cranking. most of the time it will be the fuel pump at fault. hardly ever the relay or eng. control module. 



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