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Thread: 2014 Navigator hitting commanded Lambda fuel clip?

  1. 02-03-2015 #1
    Lundstedt Automotive
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    2014 Navigator hitting commanded Lambda fuel clip?

    Have tried multiple multiple things to make this supercharged Navigator demand a lambda less then .88, including COT and it will not, like there is a clip. It is not torque or transmission related. Everything switches when it is suppose to on the WOT Fuel enrichment, but the demanded Lambda does not match the WOT Lambda table.
    Note: it will demand more fuel, down to .84, with greater RPM but I am not going to keep running it up there that lean.



    Eric, can you look at this calibration and see if there is a missing clip somewhere? I have it locked to go WOT fuel as soon as you touch the throttle by the way.

    mod8.hpt
    Ori Read.hpt
    Last edited by Lundstedt Automotive; 02-04-2015 at 11:53 AM.
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  2. 02-03-2015 #2
    toyoguru
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    Any logs of the runs, specifically logging the usual suspects including demanded lambda and torque source?
    Current toy- 97 SCSB OBS chevy forged 6.0/4l80 combo with a bit of boost..currently back under the knife

    To many previous vehicles to list
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  3. 02-04-2015 #3
    Lundstedt Automotive
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    Yes, Torque source stays at 0. As I said I don't believe it's torque or transmission related.
    Demanded lambda demands rich right when it is suppose to, but only demands down to .88. When I have it demanded to go .78.

    This is a flex fuel vehicle and I don't as many tables as I do in the f150's...

    It doesn't have E85 in it, but could it be looking up WOT Lambda on a different table I don't have access to? Another weird thing is if you look at the Original calibration, under WOT Lambda - Engine RPM on the Y-axis isn't right. I had to change it to make since...

    I have beta 2.25.1562
    Last edited by Lundstedt Automotive; 02-04-2015 at 03:32 PM.
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  4. 02-04-2015 #4
    Eric@HPTuners
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    Quote Originally Posted by Lundstedt Automotive View Post
    Yes, Torque source stays at 0. As I said I don't believe it's torque or transmission related.
    Demanded lambda demands rich right when it is suppose to, but only demands down to .88. When I have it demanded to go .78.

    This is a flex fuel vehicle and I don't as many tables as I do in the f150's...

    It doesn't have E85 in it, but could it be looking up WOT Lambda on a different table I don't have access to? Another weird thing is if you look at the Original calibration, under WOT Lambda - Engine RPM on the Y-axis isn't right. I had to change it to make since...

    I have beta 2.25.1562
    Email your file to support, along with the issue you are having and I will take a look.
    Eric Brooks
    HP Tuners, LLC
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  5. 02-04-2015 #5
    Lundstedt Automotive
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    Thanks Eric,
    Sent email along with files.
    Do you need an Info log as well?
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  6. 02-05-2015 #6
    Eric@HPTuners
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    No, just the file.
    Eric Brooks
    HP Tuners, LLC
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  7. 02-05-2015 #7
    Lundstedt Automotive
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    Do you think you'll get a chance to look at it today? Or is this something I should expect next week?
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