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    VWVortex


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    Thread: No power to fuel pump!!!

    1. 12-18-2010 08:14 PM #1
      So I have a 2005 jetta gli and i got in it a couple nights ago and i didnt have any acc power.. so i done some research and found that the ignition switch goes out alot on these cars so i swapped it out.. anyway now the car wont start at all when i turn on the key i never hear the fuel pump prime and the engine turns over but it just wont start.. i checked my relay and replaced it but it wasnt bad.. anyway i checked my voltage at fuel pump and i have 1.8 v untill i try to start the car.. when i turn the key the voltage drops to 0 so im open to any and all suggestions please somebody help me out.. thanks!!!

    2. Member raymondlee's Avatar
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      02-13-2011 11:07 AM #2
      same problem here

    3. 02-13-2011 11:27 AM #3
      Check the fuses on top of the battery. There incoming lines for the acc power start there. Also check your fuse panel for the fuel pump or any other ones inside the cabin.
      8V Society. RIP #165
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    4. Member raymondlee's Avatar
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      02-13-2011 11:30 AM #4
      will do.


      the fuses are good. I am not even getting power at the fuel pump fuse

    5. Member raymondlee's Avatar
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      02-13-2011 01:06 PM #5
      dont know. i think my ecu is bad.


      I am getting spark from the coil.
      I jumped the pumped to run.

      Still no start.

      Something is fried. when i was driving it just cut off with no warning. the tach and dash went haywire like 10 secs before it cut out though.

      glad i didnt sell my mk2. fired right up after sitting for months.

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      02-13-2011 01:14 PM #6
      when you changed ignition, did you keep the cylinder, or are you using a new key now? think maybe your immobilizer isnt recognizing the new key if you switched? if not, i'd hate to say it, but it DOES sound like it could be the ecu, especially if everything went screwy on the dash first.....but i'm not a watercooled vw expert.....my mk4 vr6 is actually my first watercooled vw....

    7. Member raymondlee's Avatar
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      02-13-2011 01:16 PM #7
      it sucks........



      this is on a 98 beetle by the way. i dont think i have immobilizers. I think i am about to swap somethign else in it.......

    8. 02-13-2011 05:06 PM #8
      I'd start by checking your ignition switch. Is the fuel pump relay operating when you turn the key on? Do the back-up lights work?
      Last edited by dennisgli; 02-13-2011 at 05:22 PM.

    9. 02-13-2011 05:26 PM #9
      Quote Originally Posted by Havokgliturbo View Post
      So I have a 2005 jetta gli
      Quote Originally Posted by raymondlee View Post
      same problem here
      Quote Originally Posted by raymondlee View Post
      this is on a 98 beetle by the way
      Hold it. How can this be the same problem if you don't even have the same car???

      You're in the wrong forum!

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      02-13-2011 05:41 PM #10
      Quote Originally Posted by dennisgli View Post
      Hold it. How can this be the same problem if you don't even have the same car???

      You're in the wrong forum!
      x2

    11. Member raymondlee's Avatar
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      02-13-2011 10:20 PM #11
      i will have to use a test light to test the back up lights as they are deleted right now.

      What is this testing though?

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