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2G Cranks but wont start, testing fuel pump

Posted by 97-GSTDSM, Mar 10, 2019

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  1. 97-GSTDSM

    97-GSTDSM Probationary Member

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    I need some help been researching around the forums just need to confirm if im right.

    I have a 97 gst that cranks but doesnt start. I checked for spark and its there i tested the fuel pump by connecting a wire directly from the battery and didnt hear nothing, tested the white connector on top of the fuel pump for current while cranking and my test light did turned on but only on one side of the connectors maybe because the other one is ground?

    I tested the black connector besides the fuel pump switch and got nothing while cranking. Is there another test to do before i order a new fuel pump?
    Thanks.
     

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  2. pauleyman

    pauleyman DSM Wiseman

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    You connected directly to where? If you want to verify fuel volume use the fuel pump check connector. Then take a hose and connected to the fuel return at the regulator and put it in a bucket. This will tell you if you have fuel flow or not. It will not tell you if you have fuel in the motor because you still don't know if your injectors are firing.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  3. 97-GSTDSM

    97-GSTDSM Probationary Member

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    I used the fuel pump connector switch the black one and loosened the bolt on top of the fuel filter and didnt see any fuel.

    I put a screwdriver on the injectors while cranking and didnt hear anything.
     
    Last edited by a moderator: Mar 10, 2019
  4. pauleyman

    pauleyman DSM Wiseman

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    With the check connector hooked up test for voltage at the fuel pump connector. Also listen for the fuel pump if you have voltage.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  5. 97-GSTDSM

    97-GSTDSM Probationary Member

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    I connected the black lead on one side and red on the other side with a voltmeter on top of the fuel pump connector and was getting voltage more every crank 9.70 volts, and no sound of fuel pump. But no voltage without cranking.

    Everything else was connected on the battery aswell.


    Wheres is the cut out switch i read that that could be the issue too is it underneath? Couldnt find it on top.
     
  6. pauleyman

    pauleyman DSM Wiseman

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    You dont need to crank. Just hookup the connector then go check for voltage.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  7. 97-GSTDSM

    97-GSTDSM Probationary Member

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    It was 0

    Nvm its 0.01
     
    Last edited by a moderator: Mar 10, 2019
  8. pauleyman

    pauleyman DSM Wiseman

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    Go test the circuit. You are sure you have the proper under hood check connector
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  9. 97-GSTDSM

    97-GSTDSM Probationary Member

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    My bad i was checking the sensor that connects to the fuel pump not the one on the firewall.

    My test power cable the one im connecting to the positive battery terminal and the fuel pump test connector is kinda thick so i cant get a good reading with my voltmeter it starts high then keeps dropping until it reach 0 but not sure if its because im touching the positive cable.
     
  10. pauleyman

    pauleyman DSM Wiseman

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    Fab a jumper. Connect to test connector. Use multimeter to check voltage at the pump.Its that simple.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  11. 97-GSTDSM

    97-GSTDSM Probationary Member

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    I left the cables connected and the connector melted with the positive cable inside :ohdamn:
     
  12. pauleyman

    pauleyman DSM Wiseman

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    At least you found your problem. Go find the short and fix it.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  13. 97-GSTDSM

    97-GSTDSM Probationary Member

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    I have no idea how
     
  14. pauleyman

    pauleyman DSM Wiseman

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    Show us the connection you were using. Check connector just jumps the relay. Do you know how to read a circuit diagram?
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  15. 97-GSTDSM

    97-GSTDSM Probationary Member

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    The cable is like that one without the yellow end and i was connecting it into the black sensor.

    uPh0qOo.jpg

    9SUvvZu.jpg

    No i cant read diagrams but i was reading about it on a service manual that i found on this forum.
     
    Last edited by a moderator: Mar 10, 2019
  16. pauleyman

    pauleyman DSM Wiseman

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    What did you hook that up to?
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  17. 97-GSTDSM

    97-GSTDSM Probationary Member

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    Into the battery positive terminal
     
  18. pauleyman

    pauleyman DSM Wiseman

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    The other end
     

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    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  19. 97-GSTDSM

    97-GSTDSM Probationary Member

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    Into that black connector shown on picture #2
     
  20. pauleyman

    pauleyman DSM Wiseman

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    How did you determine that to be the fuel pump connector? Is you harness unwrapped? This isn't where it's supposed to be.
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  21. 97-GSTDSM

    97-GSTDSM Probationary Member

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    No its not unwrapped and thats what i read on this forum and i think it was on that threat where i got that picture and from a service manual around here too.
     
  22. 97-GSTDSM

    97-GSTDSM Probationary Member

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  23. pauleyman

    pauleyman DSM Wiseman

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    Jesus...how about a picture of YOUR car. That's what im getting at here. :ohdamn:
     

    Street Build 2K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  24. 97-GSTDSM

    97-GSTDSM Probationary Member

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    Y4r9nOb.jpg
    That white wire is the one i was connecting to the battery and the other end into that black sensor.
     
  25. 97-GSTDSM

    97-GSTDSM Probationary Member

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    This is the other part of that black check connector

    r92vKw4.jpg

    KFTR0UO.jpg
     

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