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  1. #1

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    Houston, we have a problem!

    So over the winter I kind of went over everything on my 2018 RXT-X. As it sits, it has the stage III plus kit without exhaust. The prop is the Riva prop that I sent to Skat Trak to have tuned. I have a 9200 tune and I told Skat Trak to have the rpm's set at 8900. (those guys are really good btw)

    I have the open loop system sitting here but haven't installed it. One of things I did was send the injectors out to be tested and cleaned and after seeing videos, it's a good thing, they weren't spraying very well.

    I took the advice of many of GH's knowledgeable junkies and installed the Dashpac so I could read AF ratios.

    Today was about 67 degrees, less than 50% humidity and about 700 feet elevation.

    A/F ratio was between 18-19 at WOT so clearly I need more fuel.

    Does anyone have a data logger I could rent? I'd be more than happy to send a deposit but I really don't want to buy one because once Jesus has finished tuning it, there are no more mods that will be done.

    Here's the video.



    Thanks,

    Mark


  2. #2
    DR2006RXP's Avatar
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    Wow Thatís Lean .

  3. #3

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    Quote Originally Posted by DR2006RXP View Post
    Wow That’s Lean .
    Honestly, I'm surprised I didn't blow a hole in the top of a piston...

  4. #4
    DR2006RXP's Avatar
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    Did you feel any hesitation on the ski ? Is that a check engine light ???

  5. #5
    DR2006RXP's Avatar
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    Jesus could just add 5%more fuel
    Up top see what happens to the afr

  6. #6
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by Orangecrush View Post
    So over the winter I kind of went over everything on my 2018 RXT-X. As it sits, it has the stage III plus kit without exhaust. The prop is the Riva prop that I sent to Skat Trak to have tuned. I have a 9200 tune and I told Skat Trak to have the rpm's set at 8900. (those guys are really good btw)

    I have the open loop system sitting here but haven't installed it. One of things I did was send the injectors out to be tested and cleaned and after seeing videos, it's a good thing, they weren't spraying very well.

    I took the advice of many of GH's knowledgeable junkies and installed the Dashpac so I could read AF ratios.

    Today was about 67 degrees, less than 50% humidity and about 700 feet elevation.

    A/F ratio was between 18-19 at WOT so clearly I need more fuel.

    Does anyone have a data logger I could rent? I'd be more than happy to send a deposit but I really don't want to buy one because once Jesus has finished tuning it, there are no more mods that will be done.

    Here's the video.



    Thanks,

    Mark
    It could be an air leak at the O2 sensor bung.

  7. #7
    ptscon's Avatar
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    O2 sensor might be on its way out, no way a motor runs at 19 AFR.

  8. #8
    GRF + DashPac:) seadoo02xp's Avatar
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    why is the check engine light on?

  9. #9

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    Guys, sorry. Answered all questions and my router died so I’m on my phone. Anyway, check engine light is on but it’s because voltage was low.

    I’ll check into the loose or bad O2 sensor. Will a smoke machine show a leak? The O2 sensor is brand new so I’m “assuming” it’s not defective but shit happens.

    Ill check on on the bing and sensor and let y’all know what I come up with.

    Thanks,

    Mark

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