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Hick-up in turbo m20

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    Hick-up in turbo m20

    Hi. Just drove my turbo m20 for the first time. Here's my setup:

    T3 turbo
    3" exhaust
    Wideband lc-1
    30lb injectors
    Turbo chip
    Adjusted AFM wheel
    NGK plugs
    ~6 lbs of boost
    External wastegate


    Here's my problem:

    It starts up fine. It doesnt idle too well before it's warmed up, but once it's warm it idles good (most of the time). There is a small vacuum leak that I know of. It's the little hose underneath the intake manifold. I'm not sure of the part #, anyone know what I'm talking about? It's not just a hose, it's shaped kind of like hook or something. Anyway, on to more problems. The first time I drove it, there was power throughout the rpms. The next time I drove it it felt like there was no power ~4k rpm (2nd gear pull). This was not WOT. Maybe 3/4 throttle. I don't have an RRFPR (will be getting one soon). What could be my issue? Is it not getting enough fuel?

    Any help would be great :)

    #2
    i have the same idle issue you do need a rrfpr you should pull your plugs and see what they look like make sure your getting enough fule what engine managment system are you using?
    ...

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      #3
      It's a chip that came with a kit I bought. It's a bosch turbo chip.

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        #4
        The 173 ecu is a self learning ECU. It will take a couple days for it to adjust to the #30 injectors. But having a vacuum leak does not help. The hose your talking about is for the check valve on the charcoal canister. Just pull it off and replace it with a straight piece of vacuum line. What were your AFRs when you were boosting with no power? Did you pressure check your charge pipes?
        Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

        www.gecoils.com
        My euro 316 project Transaction Feedback

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          #5
          Hick-up in turbo m20
          I hate when rednecks get in my engine too.....
          1974.5 Jensen Healey : 2003 330i/5

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            #6
            You NEED that rrfpr.

            btw, get some real engine management when your done playing with kids toys.

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

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              #7
              Originally posted by slammin.e28guy View Post
              I hate when rednecks get in my engine too.....
              :rofl:

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

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                #8
                Didn't pressure check my charge pipes, I might have to do that though. Ok cool, I will do that when I get home from school. My Afr readings are all over the board. It says it's idling at 19 now, but before it would idle at 15. So I think I have a bad ground on the sensor. I wired the lc-1 into the stock o2 connector so I don't think that's doing anything other then giving me trouble

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                  #9
                  I can't find anyone who's getting rid of their RRFPR. Where can I get one?

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