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    Thread: Fuel Pump

    1. Member
      Join Date
      Nov 10th, 2011
      Akron, OH
      89 Jetta GL (16v&Helios swapped), 98 Silver Arrow Driver's Edition 2.0L GTI
      04-29-2012 12:08 AM #1
      I have a 98 golf GTI and it had a starting problem until i replaced the ignition switch. Before I did that, the CEL was throwing the fuel pump relay code. after replacing the switch, the pump and relay turn on and off constantly. Any ideas?

    2. Junior Member sooperman23's Avatar
      Join Date
      Mar 9th, 2011
      Fort Wayne Indiana
      96 Volkswagen GTI, 2000 Volkswagen Beetle,, 2001 A6 2.7T, 2007 Rabbit 2.5
      04-29-2012 04:51 AM #2
      Good news: you know this is an electrical problem if its throwing a CEL. Personally I would try the relay first. Those little buggers can be pretty tempermental and lots of things can make them go bad. Heat, vibration, Electrical shorts...I'd try and find out if the relay was good first. Start with the easy stuff. If the relay is good then this could just as easily be the pump.

      Bad news: If both the pump and the relay are good then your going to have to hunt down the gremlin thats causing the relay to switch on and off. This could be a short in the harness...

    3. Member
      Join Date
      Nov 26th, 2007
      kamloops canada
      1997 2.0L GTI, 1994 Golf CL winter driver
      04-30-2012 12:48 AM #3
      This sounds like a VR...

    4. Member
      Join Date
      Mar 6th, 2002
      Morris Plains, NJ
      1998 GTI 2.0T
      04-30-2012 08:06 AM #4
      Check the power and ground on the relay control circuit. If they're steady, the relay is bad. Relatively common failure.
      2012 Corolla
      1998 GTI 2.0T

      World Automotive
      Need any VCDS (VAG-COM) diagnostics or coding in the North NJ area? PM me.

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