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Modify AWD programming?

Discussion in 'Modified 2011- 2019 Explorer Sport Tuning' started by Marc S, January 21, 2018.

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    1. Marc S

      Marc S New Member

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      Is anyone modifying the AWD programming to get more rear bias?

      Anyone experienced the performance in a sport with torque steer compensation turned off?

      The 2013 is great, but the FWD takes some getting used to!
       
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    3. peterk9

      peterk9 Staff Member Moderator Elite Explorer

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      Welcome to the Forum Marc.:wave:
      When you state "torque steer compensation" are you referring to Traction Control? No one here has posted about modifying the AWD bias. Not sure it is even possible since it would likely affect all TMS settings. I've read various post about torque steer but can't say I've experienced it.

      Peter
       
    4. Marc S

      Marc S New Member

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      There is a setting on the forscan Excel sheet by platinumOwner for the power steering module that is called Torque Steer Compensation.... Not sure what it is ... (Thanks for all of the info platinumOwner!)

      I've read that the PIU has a different tune for the AWD that has more rear bias. I was hoping there's a way to tune the AWD lol like the motor tunes.
       
    5. Kikinz24

      Kikinz24 Member

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      Well if this help you out any here's my as built I have a 2015 PIU 3.5 ecoboost awd. Compare it to yours and let's see what is actually different[​IMG]
       
    6. Marc S

      Marc S New Member

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      I have a 2013 Sport:

      2015 PIU 3.5 ecoboost awd
      PSCM 730-01-01 0 5 0 3 0 0 0 1 0 0 4 2
      PSCM 730-01-02 0 0 0 0 0 0 0 0 0 0 3 A
      PSCM 730-01-03 0 0 0 0 3 B

      2013 Sport
      PSCM 730-01-01 0 7 0 5 0 0 0 1 0 0 4 6
      PSCM 730-01-02 0 1 0 0 0 0 0 0 0 0 3 B
      PSCM 730-01-03 0 0 0 0 3 B

      I'm looking at "PlatinumOwner" 's excel sheet with definitions (FORScan 2011-2018 Explorers)

      The first byte is labeled as "vehicle variant tune selector"
      05=3.7L TiVCT FWD Police,
      07=3.5L GTDi Sport 20" Hankook Tire,
      Seems to be correct for my sport, but incorrect for the PIU AWD Turbo.......

      Second byte is labeled "tire size"
      03=18" Tire,
      05=20" Tire
      Seems to be correct for both, for RIM size anyway...

      First byte in second block (730-01-02) is labeled as "Torque Steer Compensation"
      00=Disabled
      01=Enabled
      Looks like the Sport has it enabled while PIU does not. I'm wondering if that is due to the fact that the Explorer is more FWD for gas mileage, while the PIU has more rear bias and therefore does not need. Something seems to be incorrect in teh spreadsheet though, as the 05 in the first byte is thought to mean a 3.7 FWD, which I would really expect to have torque steer compensation....

      Any Ideas?
       
    7. golf4283

      golf4283 New Member

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      following. I'd be interested in a more even if not rear wheel bias like my subaru used to be.
       
    8. peterk9

      peterk9 Staff Member Moderator Elite Explorer

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      I believe 'Sand' mode will do that but I don't think it can be left in that mode for regular driving.

      Peter
       
    9. expoman55

      expoman55 Elite Explorer

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      Just wondering if there are any Ford Engineering types out there who can chime in on this.. Love to put more bias in RWD for my Sport vs shifting. I think Peter could be right in that driving with selector in sand all the time may not be ok for transaxle
       
    10. thefranchise713

      thefranchise713 Active Member

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      Vehicle Variant Tune Selector = PSCM = Power Steering Control Module.

      That's going to change a handling strategy, not a torque bias.
       

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