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possible diagnosis needed?

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    possible diagnosis needed?

    Hey do any of your cars feel like they have more power and better response with a full tank of gas? I know that it should be the opposite in dealing with weight and all, but it seems like my car runs a lot better with a full tank of gas. Any ideas?

    #2
    im def. not an expert, but my car seems to do the same thing. it seems with half a tank and less it sucks are sometimes. But i have no clue
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      #3
      My car runs best with about a gallon of gas in it.

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        #4
        Originally posted by Yakinho View Post
        My car runs best with about a gallon of gas in it.
        yeah man, show that intank fuel pump whose boss ;-)
        Build Threads:
        Pamela/Bella/Betty/325ix/5-Lug Seta/S60R/Miata ITB/Miata Turbo/Miata VVT/951/325xi-6

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          #5
          I can never tell the difference. Is it bad to not fill it until the little red light goes on?

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            #6
            My diagnosis: Spend the $110 on the hour for a BMW Tech to diagnose it. If you think its that serious.

            And yes, the more you run your car to empty, the worse off your fuel pump is... Though Im guilty of the same thing.
            Originally posted by blunt
            i would jerk larry king off while tonging jflips ass if h0lmes would blow his head off

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              #7
              That sucks. I always fill it up once the little orange light tells me to. Range doesn't work an neither does the gas gauge so...

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                #8
                maybe cause more fuel in the tank sorta gravitationally pressurizes the pump inlet Since its near the bottom of the tank and helps the fuel pump pump more fuel easier? i ono, a logical explanation lol

                ive got a walbro 255 so i only have funny whining issues. my car sounds like those big suv/trucks from 10 ft away when im approaching 1/4 tank.

                All-Red/MHW style Professional Tinted Tail lights
                PnP EMS, fuel injectors, wideband o2 systems

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