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Thread: 2007 F-series with 5.4 navigator swap and turbocharged commanded lamda problems

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    2007 F-series with 5.4 navigator swap and turbocharged commanded lamda problems

    Ok its a 2007 f150 used to be a 5.4 3v now swaped to a 5.4 from a navigator 4v and made s custom turbo kit at the shop
    i added a 2007 mustang gt throttle body to mantein the ETC ecu from the truck
    im getting clos to the tune but im having a first time happening very straaaangeeee isssue thats some sort of torque management or fuelling problem that im misssing, i aprecciate any help the problem is that im commanding .89 lambda running open loop and just exactly after the truck shifts to 2nd gear it goes .999 or 1 lambda even been a full wot blast

    it just continues to go to 1.00 lamda right after the gear shift

    posting photos tune and short wot log


    10896912_10204949032360023_1710153515649238931_n.jpg10407576_10204949033040040_7715313213582492750_n.jpg10917885_10204949036000114_6275270293144789167_n.jpg10703986_10204403651205835_8495185181653737004_n.jpg10411118_10204949034440075_7676630048093066419_n.jpg

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    HPT Employee Eric@HPTuners's Avatar
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    Without access to the parameters you need to log to see where this is coming from, I can only guess.

    I would look in to the Engine > Torque Management > General > Fuel Cut Torque Ratio. You can remove the PCM's ability to cut fuel this way.
    Eric Brooks
    HP Tuners, LLC

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    disabled everything in the fuel cut torque ratio and still same problem



    truck enters boost makes enrichment to .79 lambda pulls as a crazy train but when it shifts from 1st to 2nd gear at wot it just goes from .79 to .995 once it shifts to 2nd gear

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    disabled everything in the fuel cut torque ratio and still same problem



    truck enters boost makes enrichment to .79 lambda pulls as a crazy train but when it shifts from 1st to 2nd gear at wot it just goes from .79 to .995 once it shifts to 2nd gear

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    Did you compensate for the different cam sensors?

    Kev

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    Hard to say without seeing a tune and a log. Problem could be in your airlfow modeling (e.g. speed density) or possibly in a transmission torque truncation.
    Jeff Chambers, Owner
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    Performance Parts, Service and Dyno Tuning Specialists

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    thats the tune and a log file thanks for the help
    Attached Files Attached Files

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    Quote Originally Posted by Kevin@JPCRacing View Post
    Did you compensate for the different cam sensors?

    Kev
    thanks for the response kevin i dont know since its first time i do a navy swap to this truck the navigator engine only uses 1 cam sensor i did disable VVT and every dtc related to it but how do i compensate for it

  11. #11
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    Can you log fuel and torque sources? These might tell you what's forcing the change in commanded lambda. You might also kill off the torque reduction by torque authority and also rework your torque/inverse torque tables; I see that you're only prediction 500 NM at an engine load of 2.0 which seems oddly low.
    Jeff Chambers, Owner
    CRT Performance, LLC
    349 Cleveland Road
    Norwalk, OH 44857
    Ph: 419-668-4151
    Fx: 419-668-4643

    Performance Parts, Service and Dyno Tuning Specialists

  12. #12
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    Do what Jeff recommends ^ That will be a good indicator of what's going on. Any codes?

    See if you can get your hands on a 4.6L file from those years of trucks and compare Cam configuration settings. I believe all the 4.6's in those trucks were 2V and that will be the same crank/cam trigger as your Navi engine. The 3V has 5 poles on both cam gears and the 2V, 4V engines were single pole on drivers side only. I have no experience converting between them but I thought I'd mention it.

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    ok it would be nice to figure out the cam crank config but i think hptuners doesnt have acces to that options