HOW TO: 2019+ Live Valve Recalibration - FORScan

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Jeff-Ohio

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i am having trouble finding the VDM module. Stock 2020 screw. I am probably missing a step.
Two things that I noted when I did the recalibration:
1) The VDM module did not show up when I had my MPT tune installed. I had to revert back to stock to see it.
2) It took some time for FORScan to initially authenticate and do all of the downloads (whatever it does). It appears that you have to allow that synchronization process to complete before you can follow the steps as outlined.
 

COLESLAWJAY

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Two things that I noted when I did the recalibration:
1) The VDM module did not show up when I had my MPT tune installed. I had to revert back to stock to see it.
2) It took some time for FORScan to initially authenticate and do all of the downloads (whatever it does). It appears that you have to allow that synchronization process to complete before you can follow the steps as outlined.
He replied above that it was a hardware issue as he was using the wrong cable


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lilgsx96

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Two things that I noted when I did the recalibration:
1) The VDM module did not show up when I had my MPT tune installed. I had to revert back to stock to see it.
2) It took some time for FORScan to initially authenticate and do all of the downloads (whatever it does). It appears that you have to allow that synchronization process to complete before you can follow the steps as outlined.


I had the Same issue with the MPT tune. I just returned it back to stock and it found the VDM. Calibrated it reloaded the MPT tune.
 

10SpdsOfFury

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I just did the recalibration and LF was -17 and RF was -16 and RR and LR were +3. I did the calibration and got the front set to 0 and back to +2. Took it for a drive and I can tell it’s smoother and more like my 2017. I highly recommend if you have Forscan do the recalibration.
 

dixonk

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Very noticeable difference after performing the reset. Back to factory plushness now with the Eibachs and Deaver +4


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MAMiller44

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Two quick questions:
1) Wouldn’t you want your typical load in the rear so it calibrates to that? The instructions note no “luggage” though.
2) Why wouldn’t you want the weight of you in the driver’s seat? Instructions also say no passengers, but 99% of the time driving it’s just me in the driver’s seat. 0% of the time there is nobody in the drivers seat lol
 

COLESLAWJAY

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Two quick questions:
1) Wouldn’t you want your typical load in the rear so it calibrates to that? The instructions note no “luggage” though.
2) Why wouldn’t you want the weight of you in the driver’s seat? Instructions also say no passengers, but 99% of the time driving it’s just me in the driver’s seat. 0% of the time there is nobody in the drivers seat lol
The different is so minuscule it would t make a difference. It’s not the same as your typical “corner balance” for cars with coilovers as is sounds like what you’re referencing to


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MAMiller44

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The different is so minuscule it would t make a difference. It’s not the same as your typical “corner balance” for cars with coilovers as is sounds like what you’re referencing to


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Depending on your setup, the constant load in the bed will lead to up to 2” of intentional sag in the rear. I don’t see that at all as minuscule.
 

COLESLAWJAY

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Depending on your setup, the constant load in the bed will lead to up to 2” of intentional sag in the rear. I don’t see that at all as minuscule.
If you’ve got 2” of constant sag, you’ve got bigger things to worry about. Like new leafs.
Also, there’s no rear ride height sensors.


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