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  • 2005 - 2014 S-197 Mustang -General/Talk-

Limp mode after changing axle ratio

  • Thread starter Thread starter Po43
  • Start date Start date Apr 5, 2019

Po43

Member
Apr 5, 2019
2
1
13
Eagle point, oregon
Apr 5, 2019
#1
  • Apr 5, 2019
  • #1
Hey all,
We recently installed a procharger to my 06 Mustang GT. I put 4.10 gears in and changed wheel/tires to 275/40/18’s. After checking the charts, my wheels are 757 revolutions/mile. I use a Diablo i3 tuner to adjust parameters cuz my speedo is of about 12%. I can change the axle ratio to 4.10 without issue but when I also change the revolutions to 757 my car goes into limp mode at nearly 3000 rpm. I’ve messed around with the rev number both higher and lower but only get limp mode. Diablo says it’s a Ford thing having to do with the abs. Any help would be greatly appreciated
 

90sickfox

Wasn't a pretty sight...and I've got big hands
SN Certified Technician
Mar 2, 2015
6,945
5,816
213
Apr 6, 2019
#2
  • Apr 6, 2019
  • #2
Someone may be able to help in the 2005- 2014 forum. I'll move your thread there. Most of the guys in this digital self tuning forum are dealing with stand alone ecu.
 
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