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Gear Ratio Problems

Discuss Predator 2 for Chrysler vehicles

Moderator: sohfast94

Post Mon Feb 04, 2019 9:37 am

Posts: 6
2008 charger RT...I have tried to tune my gear ratio multiple times now. The unit says "gear ratio changed" but when I test drive the car, it goes into limp mode once it hits 3rd gear. when I get home and check the DTCs it says gear 3 incorrect gear ratio. This is a bit frustrating since I mainly bought the unit to change the gear ratio after I swapped to a Getrag 3.06 rear end. Any ideas?

Post Mon Feb 04, 2019 10:45 am

Posts: 56472
Location: DiabloSport World Headquarters

when you go into the gear param now does it have 3.06 highlighted? *3.06*

Are you 100% sure they are 3.06?
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST

Post Mon Feb 04, 2019 11:03 am

Posts: 6
I will check that when I get back home. The diff came off of a stock car and has the factory 3.06 sticker on it.

Post Mon Feb 04, 2019 6:06 pm

Posts: 6
mikel wrote:
when you go into the gear param now does it have 3.06 highlighted? *3.06*

Are you 100% sure they are 3.06?


I just checked again and since I paid more attention this time I noticed that the options go from 2.82 to 3.07 for some reason.

Regardless, I tried to program the gear ratio change again and it isn't locking anything in. after the tune, I go back into the gear ratio and nothing is highlighted.

Post Wed Feb 06, 2019 10:43 am

Posts: 6
So any ideas or help with this issue?

Post Thu Feb 07, 2019 12:19 pm

Posts: 56472
Location: DiabloSport World Headquarters

Please post the serial number and update the tuner when you have a chance so we can check the logs and see whats happening.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST

Post Thu Feb 07, 2019 1:57 pm

Posts: 6
I submitted a tech support ticket last night. I do not have the serial number on me right now, but according to ignition it is up to date.

Post Thu Feb 07, 2019 7:21 pm

Posts: 6
i checked for updates again and it had 5. Is it normal to have updates available so often? it seems i have updated 3 or 4 times and I have only had the device for a few weeks.

s/n: 201255879

Post Wed Feb 13, 2019 4:17 pm

Posts: 56472
Location: DiabloSport World Headquarters

our team is still looking into this.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


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