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Thread: new fuel pump, still not driving, please help

  1. #1
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    new fuel pump, still not driving, please help

    New fuel pump log.hpl

    base stock tune start up tune 2.hpt hp tuner (1).hpt

    2002 lq4
    all stock with mild summit 8719r1 cam and springs to match

    please help me drive to the exhaust shop 1 mile away

  2. #2
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    Quote Originally Posted by FASTRO VAN View Post

    please help me drive to the exhaust shop 1 mile away
    Is this a swap vehicle? Are you trying to run it with open exhaust?

  3. #3
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    Quote Originally Posted by 2xLS1 View Post
    Is this a swap vehicle? Are you trying to run it with open exhaust?
    It is a swap, and yes the exhaust is open after the new Delphi o2?s

  4. #4
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    You can't do that. Either unplug the O2s or set the tune up to disable closed loop until the exhaust is closed up by the O2s.

  5. #5
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    Quote Originally Posted by FASTRO VAN View Post

    please help me drive to the exhaust shop 1 mile away
    just have it towed.
    Probbaly what, $60?

  6. #6
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    Quote Originally Posted by 2xLS1 View Post
    You can't do that. Either unplug the O2s or set the tune up to disable closed loop until the exhaust is closed up by the O2s.
    Aw no shit? How are these fuckers on YouTube revving the piss out of these motors on the stand? No damn o2s? I knew it had to be something simple. Thanks brother.

  7. #7
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    Had no idea I couldn’t run it that way. Will unplug o2s to drive it there.

  8. #8
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    Quote Originally Posted by FASTRO VAN View Post
    Aw no shit? How are these fuckers on YouTube revving the piss out of these motors on the stand? No damn o2s? I knew it had to be something simple. Thanks brother.
    Well with the o2s unplugged it doesn?t want to run at all?

  9. #9
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    I've got the same cam in a 4x4 truck, its small enough that it should fire right up and run on the stock tune. I've put the same cam in 2 different builds and both fired right up first try. Might have to put it in OL with the exhaust open like that...
    "I don't care how it runs as long as it chop chops at idle"

  10. #10
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    Quote Originally Posted by FASTRO VAN View Post
    Well with the o2s unplugged it doesn?t want to run at all?
    If you ran it very long with open exhaust you probably fouled your plugs. O2's don't come into play until it warms up enough to switch to closed loop. Cold start it shouldn't be any different O2s plugged in or not. I think you need to study up on how open/closed loop works with O2 feedback.

  11. #11
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    Quote Originally Posted by 2xLS1 View Post
    If you ran it very long with open exhaust you probably fouled your plugs. O2's don't come into play until it warms up enough to switch to closed loop. Cold start it shouldn't be any different O2s plugged in or not. I think you need to study up on how open/closed loop works with O2 feedback.
    Only ran it for 2-3 minutes max, think that?d be enough to foul them and prevent it from idling?

  12. #12
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    Do you own a smoke machine?
    Attached Files Attached Files

  13. #13
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    Quote Originally Posted by Ratssled View Post
    Do you own a smoke machine?
    No, what makes you ask?

  14. #14
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    Quote Originally Posted by FASTRO VAN View Post
    No, what makes you ask?

    A smoke machine to test for vacuum leaks, not to party with lol
    "I don't care how it runs as long as it chop chops at idle"