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Thread: What the? fuel pressure problems 1JZGTE

  1. 08-06-2010, 08:30 PM #1
    BEVANI
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    Default What the? fuel pressure problems 1JZGTE

    so i decided to give the supra a turn over assuming as she has been sitting there for nearly 2 weeks, not a happy chap to start in the cold, but starts none the less. moved her from the car port to the garage and left her to idle and warm up. when popped the bonnet i noticed the motor was running odd. had a look at the fuel pressure reg. WTF? never done that before..

    here is the vid of the reg. what could cause this?

    http://www.youtube.com/watch?v=xHUQUZkKl9E

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  2. 08-06-2010, 08:34 PM #2
    Cuzzo
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    Default Re: What the? fuel pressure problems 1JZGTE

    dodgey fuel pump? try a different gauge first
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  3. 08-06-2010, 08:41 PM #3
    rshuwy
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    Default Re: What the? fuel pressure problems 1JZGTE

    check voltage to pump?
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  4. 08-06-2010, 08:48 PM #4
    oldcorollas
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    Default Re: What the? fuel pressure problems 1JZGTE

    either dodgy pump or dodgy FPR

    or dodgy gauge
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  5. 08-06-2010, 10:05 PM #5
    mr1jz
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    Default Re: What the? fuel pressure problems 1JZGTE

    check the voltage at the pump to begin. the guage should be fine because you can hear the idle drop as the pressure falls away. if the voltage is fine i'd be checking the fpr. may have a damaged diaphragm. what kind of fpr is it and what type of pump?
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  6. 08-06-2010, 10:12 PM #6
    wilbo666
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    Default Re: What the? fuel pressure problems 1JZGTE

    If you remove the vac/pressure source to the FPR do you get the same effect?

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  7. 09-06-2010, 05:16 PM #7
    BEVANI
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    Default Re: What the? fuel pressure problems 1JZGTE

    Quote Originally Posted by mr1jz View Post
    what kind of fpr is it and what type of pump?

    its just a cheap FPR off ebay. fuel pump is a bosch..

    wilbo, what will i be expecting to see if i remove the vac line?
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  8. 10-06-2010, 09:34 PM #8
    wilbo666
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    Default Re: What the? fuel pressure problems 1JZGTE

    Quote Originally Posted by BEVANI View Post
    its just a cheap FPR off ebay. fuel pump is a bosch..

    wilbo, what will i be expecting to see if i remove the vac line?
    Well it might tell you if it is related to manifold vac or not...

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