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    Thread: no fuel, power to pump, new relay, pump and filter

    1. 10-26-2009 03:50 AM #1
      I have been having a problem with my car starting. It got progressivly harder to start untill it didnt start at all. Some times it would start immediatly. other times it not at all. Here is what i know/done:
      1. I am getting spark, the car will start when using starting fluid. When started it runs/drives fine.
      2. No fuel comes out of the rail when cranking the engine,but when i stop cranking it a little comes out(1-2oz)
      3.New fuel filter, relay and fuel pump.
      4. Fuse is good
      5.There is power at the pump.
      6. I have checked the codes.
      7.i cannot hear the pump when cranking the engine.

      How does the ignirion system interact with my pump? are there other sensors that would affect the pump? i have studied the wiring diagrams and am very confused to what the problem could be.


    2. 10-26-2009 10:02 PM #2
      checked it out today. I couldnt here the pump when cranking or just turning the key to the on position. There is power at the pump but it seems to be low

    3. 11-11-2009 02:10 AM #3
      check your grounds, and the if you have a spare ignition switch laying around try that too.. (just simply unplug the harness from the back of the ignition and plug it into the spare, then use a flat head to turn the engine over.

    4. 11-19-2009 04:40 PM #4
      was there any conclusion to this because i am haveing the same problem

    5. Junior Member
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      11-19-2009 07:22 PM #5
      Yeah me too...
      Any help

    6. Member rubenl's Avatar
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      02-19-2010 01:07 PM #6
      that makes three of us....any answers ????

    7. Member Austin_85'MKII's Avatar
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      02-23-2010 12:32 AM #7
      my fuel pump primes sometimes. so make it 4. new pump, relay, ignition switch

    8. 02-23-2010 01:44 AM #8
      going through the same thing.

    9. Member VDUBIN's Avatar
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      02-23-2010 06:57 AM #9
      check your voltages at the pump. use a local ground and see what you get on the hot wire, then use the pump ground and see what you get. should be the same. if they are probably need a new pump. if higher when using a local ground then you have a wiring prob and the pump is essentially not getting any juice due to a bad/corroded ground. you can also test this by running your own hot wire and ground to the pump and see what happens.
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    10. Member rubenl's Avatar
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      02-23-2010 12:47 PM #10
      I am getting power at the #18 fuse (fuel pump) when the engine cranks, I thought it would get power when the ignition was on...I thought I had problem fixed by replacing my cracked up coil with a new one ( no such luck) still looking at the crank sensor...

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      02-23-2010 12:54 PM #11
      voltage drops are your friend
      formally pow3r hour

    12. Member stoveyy's Avatar
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      02-23-2010 01:15 PM #12
      my friends car did te same thing. it was his ecu relay
      Quote Originally Posted by Sallad View Post
      I guess I should been more specific. I'm talking MkI - III. Since this is the MkIII forum, I thought that would have been a given, that there was nothing past our generation.

    13. Member stoveyy's Avatar
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      02-23-2010 01:18 PM #13
      actually, going back and re reading that. it sound like you have a ground thats been getting worse and worse. check those first. the main grounds, and the three on the block if its a 2.0
      Quote Originally Posted by Sallad View Post
      I guess I should been more specific. I'm talking MkI - III. Since this is the MkIII forum, I thought that would have been a given, that there was nothing past our generation.

    14. Member rubenl's Avatar
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      02-23-2010 02:08 PM #14
      Quote, originally posted by stoveyy »
      actually, going back and re reading that. it sound like you have a ground thats been getting worse and worse. check those first. the main grounds, and the three on the block if its a 2.0


      I did check the grounds on the engine block (front) where the 2 wires are attached to to a tab, is there another grounding point on the block someplace, I looked but could not locate any...


    15. Member Sallad's Avatar
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      02-23-2010 03:36 PM #15
      Can you hear/feel the ECU relay click when you turn on the car? If the ECU doesn't have power, the fuel pump will not come on.

      Have you tried just jumping the fuel pump?

      Also, when turning the car on and off (priming the pump) have someone LIGHTLY tap on the fuel pump, maybe you have some gum/varnish clogging it up a little?

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    16. Member rubenl's Avatar
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      02-24-2010 02:12 AM #16
      Quote, originally posted by Sallad »
      Can you hear/feel the ECU relay click when you turn on the car? If the ECU doesn't have power, the fuel pump will not come on.

      Have you tried just jumping the fuel pump?

      Also, when turning the car on and off (priming the pump) have someone LIGHTLY tap on the fuel pump, maybe you have some gum/varnish clogging it up a little?

      From what I've read there is no relay for the ECU on a 96 OBD II...


    17. Member square_one's Avatar
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      02-24-2010 02:31 AM #17
      Quote, originally posted by rubenl »

      From what I've read there is no relay for the ECU on a 96 OBD II...

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    18. Member rubenl's Avatar
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      02-24-2010 03:24 PM #18
      the #3 slot where the relay would go is empty on this model year, I thought I had found the solution when I noticed it was empty...

    19. Member Cyfer's Avatar
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      02-24-2010 03:51 PM #19
      Exact same thing was happening to my car.. Was ignition switch - that caused problems to the fuel pump relay as well as the crank position sensor which explains the no start.

      Symptoms seem exactly the same, car took longer to start and it got worst and worst till it wouldn't start at all. Get all those checked out!


    20. Member rubenl's Avatar
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      02-24-2010 06:38 PM #20
      thanks, I just ordered one...it's inexpensive so it's worth a shot...

    21. 02-24-2010 06:57 PM #21
      thanks for the infor people . I am having a similar problem with my VR swap. Engine craks, but very low power to the fuel pump and no priming. The ECU is just sitting in the rain tray right now, and not on its bracket. Maybe it's not grounded and therefore not getting power.

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