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I am currently stumped on a 2005 VW Touareg 3.2 engine code G where the p/s fuel pump loses power after approximately 30 seconds of running. Fuel pressure drops until vehicle dies. Starts right back up and fuel pump gets power again , but loses it after 30 seconds and the cycle repeats itself. Fues are good, relays are good. Something is controlling the circuit to turn the pump off. If I manually supply 12 volts to the p/s fuel pump vehicle runs forever. I would appreciate any ideas moving forward.
 
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