Gear change
12-25-2017, 08:02 PM
#11
The Superchips Flashpaq and some of their other products do tire size and gears up to 4.10 and 37" on 2015 (at least on 5.0L they do).
https://superchips.com/
https://superchips.com/
12-26-2017, 01:18 PM
#12
Senior Member
12-26-2017, 01:26 PM
#13
Gone Golfin
iTrader: (3)
I'm going to 35s and 4.10s as soon as the install kits come in so I've been looking for a solution as well. I've searched the huge Forscan thread and must have missed it because I'm still looking. I looked at NGuage with 5Star tunes but I don't think they're doing gear adjustments yet.
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locknload (12-26-2017)
12-26-2017, 03:23 PM
#14
Senior Member
FORScan Spreadsheet BCM Tab:
726-12-01 x*** xxxx xxxx Axle Ratio: 13B=3.15, 14B=3.31, 163=3.55, 175=3.73, 19A=4.10
726-12-01 xxxx ABCD xxxx Tire Circumference (for speedometer calibration) **changing this will to cause DTC in PCM and will cause wrench icon on dash on 2017s**
** Change ABCD to the calculated value from the link below **
follow this link for the ABCD calculation
Note: The link is lost pasting the ABCD value link from the spreadsheet. Also, you will get better feedback posting your question in the FORScan sticky thread. I am not sure if axle ratios above 4.10 are possible.
726-12-01 x*** xxxx xxxx Axle Ratio: 13B=3.15, 14B=3.31, 163=3.55, 175=3.73, 19A=4.10
726-12-01 xxxx ABCD xxxx Tire Circumference (for speedometer calibration) **changing this will to cause DTC in PCM and will cause wrench icon on dash on 2017s**
** Change ABCD to the calculated value from the link below **
follow this link for the ABCD calculation
Note: The link is lost pasting the ABCD value link from the spreadsheet. Also, you will get better feedback posting your question in the FORScan sticky thread. I am not sure if axle ratios above 4.10 are possible.
The following users liked this post:
locknload (12-26-2017)
12-26-2017, 03:32 PM
#15
Senior Member
Plus after you make the change you should run the "PCM module initialization/relearn vehicle data" and "TCM relearn vehicle data" (if it lists it for you) in the programming screen in FORScan.
The following users liked this post:
locknload (12-26-2017)
12-26-2017, 05:52 PM
#16
FORScan Spreadsheet BCM Tab:
726-12-01 x*** xxxx xxxx Axle Ratio: 13B=3.15, 14B=3.31, 163=3.55, 175=3.73, 19A=4.10
726-12-01 xxxx ABCD xxxx Tire Circumference (for speedometer calibration) **changing this will to cause DTC in PCM and will cause wrench icon on dash on 2017s**
** Change ABCD to the calculated value from the link below **
follow this link for the ABCD calculation
Note: The link is lost pasting the ABCD value link from the spreadsheet. Also, you will get better feedback posting your question in the FORScan sticky thread. I am not sure if axle ratios above 4.10 are possible.
726-12-01 x*** xxxx xxxx Axle Ratio: 13B=3.15, 14B=3.31, 163=3.55, 175=3.73, 19A=4.10
726-12-01 xxxx ABCD xxxx Tire Circumference (for speedometer calibration) **changing this will to cause DTC in PCM and will cause wrench icon on dash on 2017s**
** Change ABCD to the calculated value from the link below **
follow this link for the ABCD calculation
Note: The link is lost pasting the ABCD value link from the spreadsheet. Also, you will get better feedback posting your question in the FORScan sticky thread. I am not sure if axle ratios above 4.10 are possible.
Will do, thanks again!!
01-14-2018, 05:15 PM
#17
Where would this be on the Forscan screen? I just changed my gear ratio to "019A" (4.10s) and now have an orange wrench on my instrument cluster, I don't even see where I can clear that DTC. I tried clearing the log but the wrench remains. Haven't tried the tire size yet, want to get this cleared up first. Thanks.
01-16-2018, 10:28 AM
#18
Senior Member
Where would this be on the Forscan screen? I just changed my gear ratio to "019A" (4.10s) and now have an orange wrench on my instrument cluster, I don't even see where I can clear that DTC. I tried clearing the log but the wrench remains. Haven't tried the tire size yet, want to get this cleared up first. Thanks.
01-16-2018, 10:48 AM
#20
Senior Member
Where would this be on the Forscan screen? I just changed my gear ratio to "019A" (4.10s) and now have an orange wrench on my instrument cluster, I don't even see where I can clear that DTC. I tried clearing the log but the wrench remains. Haven't tried the tire size yet, want to get this cleared up first. Thanks.
