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Thread: Fuel/Air Mixture Screw

  1. #1
    DX User
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    Exclamation Fuel/Air Mixture Screw

    When preforming the vaccum hose mod I had to adjust the fuel/air mixture screw. I had problems with the car starting after putting everything back so I began to adjust the idle and the fuel/air screw. The car still didnt run at all. Some how I managed to drive it back to where I live. The next day i figured out the hose problem and connected everything back. I was about to screw the fuel/air screw back in and start over when I noticed it was not there So just for the meantime I stuck a plug in its place. I started up and ran extremely well . I am trying to find another screw but im having trouble, anyone know where I could grab one ? Im pretty sure I need one still, cuz when I got near the tailpipe all I smelled was gas. I figured it was running rich so I took the plug and drilled a good size hole and then stuck it back in. The car still runs very well. I was wondering if that screw can affect my gas mileage in a pos./neg. manner?



  2. #2
    2.0Si User accordlxi2.0's Avatar
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    oh yea, that screw is important for something so little.
    you can try a junk yard or even on here, thier's guy's parting there car's out . . . . . .
    and it run's well 'cause the carb is kinda "happy" . . . . .
    ****** 1994 nissan maxima SE ******

  3. #3

    A20A1's Avatar
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    Negative... you want the screw.

    How did you do the vacuum mod? I took down the crap diagrams, casue people were bitching trying to get me to add things to the diagrams that wasn't originally intended to be there. I intend to put up the original diagram without the extras.

    One thing though, keep the Air jet controller.
    - llia


  4. #4
    LX User Civvy's Avatar
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    LOL!!! I've lost 3 of those buggars!!

  5. #5
    DX User
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    yea Mike I used shepherd79's diagram on how to remove the vaccum hoses, in there I was told to adjust the fuel/air screw. The Air Jet Controller? Crap! I hope I didnt toss it. Is it that black cylindrical device with the A,B and C hoses comming out? Is it better if it is installed? Would the air jet controller better/worsen the gas mileage? Either way my car preforms very well now, except for the flip lid mod.(car's preformance decreses somewhat if it gets extremely hot outside, making a custom CAI to take care of that problem) Thanks for the reply.

  6. #6

    A20A1's Avatar
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    Yeah ABC is the Air Jet... Without it you'll run very rich
    - llia


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