Toggle sidebar

Mario Kart Wii Inject - GamePad Analog Stick Overflow (Tried everything)

  • Thread starter Thread starter D00MGUY
  • Start date Start date
  • Views Views 1,074
  • Replies Replies 12
D00MGUY

D00MGUY

Member
Newcomer
Level 1
Joined
May 1, 2026
Messages
10
Reaction score
2
Trophies
0
Age
36
XP
32
Country
Italy
Hi everyone! I’m trying to play Mario Kart Wii via a Wii U VC inject, using the Wii U GamePad as a Classic Controller, but I’ve hit a brick wall with the well-known "Analog Stick Overflow" bug. Whenever I push the analog stick all the way to the right, the game reads an out-of-bounds value (overflow), turns it into a negative, and makes my kart steer hard to the left. I know this is a common issue with the GamePad's hardware pushing higher hex values than the original Classic Controller, but none of the standard software fixes are working for me. Here is my setup and a recap of everything I have already tried:
  • Game: Mario Kart Wii PAL (RMCP01)
  • Tools used: UWUVCI and Teconmoon's WiiVC Injector
  • Input: Wii U GamePad (forced as Classic Controller)
What I have tried so far (without success):
  1. Changing the Base Game: I injected the game using different bases known for better stick deadzones, specifically Rhythm Heaven Fever (USA) and Xenoblade Chronicles, but the overflow still happens.
  2. Using Gecko Codes (Analog Clamping Fix): I generated with the help of GEMINI a .gct file for RMCP01 with the ASM code meant to clamp the analog stick values (C25A0F58 00000003FC000890 3C60437F90610008 D0210008EC000032 00000000). I applied the .gct via Teconmoon's advanced settings AND UWUVCI. The game boots fine, but the stick still overflows. I also tried the classi control hacks (https://gbatemp.net/threads/new-classic-controller-hacks.659837/). It seems the VC emulator corrupts the signal before the game's code can clamp it.
At this point, I'm aware that launching the game natively through vWii using USB Loader GX + Fakemote might be the only bulletproof way to fix this, but I really wanted to have the game as a standalone icon on the Wii U menu. Has anyone figured out a definitive fix for this specific overflow issue on injects? Is there a way to edit the config.txt of the VC emulator to force a hard deadzone or limit the analog range at the emulator level before it reaches the game?
 
Last edited by D00MGUY,
I opened a couple of threads about this in the past, funnily enough it only started to be researched when someone here looked into putting hall effect sticks into the Gamepad, but it never went anywhere.

For such a glaring issue, it seems to have gone completely ignored. Also, it only seems to happen with aftermarket replacement sticks, so there's something specific to the OEM Gamepad joysticks that isn't being done in third party replacements.

Did you swap the gamepad sticks any time in the past, or is it a second hand Wii U?

PS: It doesn't happen only with injects, but also with original Wii Virtual Console games. I got Xenoblade for my Wii U and had to give up on it after swapping the sticks.
 
  • Like
Reactions: D00MGUY
Osakasan said:
I opened a couple of threads about this in the past, funnily enough it only started to be researched when someone here looked into putting hall effect sticks into the Gamepad, but it never went anywhere.

For such a glaring issue, it seems to have gone completely ignored. Also, it only seems to happen with aftermarket replacement sticks, so there's something specific to the OEM Gamepad joysticks that isn't being done in third party replacements.

Did you swap the gamepad sticks any time in the past, or is it a second hand Wii U?

PS: It doesn't happen only with injects, but also with original Wii Virtual Console games. I got Xenoblade for my Wii U and had to give up on it after swapping the sticks.
Click to expand...
I also think this is the main reason for this overflow effect. I have injected around 50 wii games (3 of them are mk wii games like wiimms mkw fun etc) and have never experienced an overflow effect. Have you tried it on dolphin? If it's working fine there, the culprit has to be the wii u gamepad.
 
Technician said:
I also think this is the main reason for this overflow effect. I have injected around 50 wii games (3 of them are mk wii games like wiimms mkw fun etc) and have never experienced an overflow effect. Have you tried it on dolphin? If it's working fine there, the culprit has to be the wii u gamepad.
Click to expand...

I did, i tested the same inject with every other controller i had at the time (wiimote+nunchuck, wii classic controller, wii classic controller pro) as well as tested the iso both on my Wii as well as Dolphin. It's also my own personal dump wich i made sure to do as clean as possible.

It's the gamepad joysticks, i only experienced this after having to swap them because they caught drift due to Smash
 
  • Like
Reactions: Technician
I've had this Wii U since day one, I've never swapped the sticks. Do you guys really not experience any issues with the original Wii U Gamepad? Are you saying it's just an issue on my end? Did you use UWUVCI for the injects and set the Gamepad as a Classic Controller? I'd really like to figure out if this is a problem specific to me and if there's a fix for it (either hardware or software).
 
D00MGUY said:
I've had this Wii U since day one, I've never swapped the sticks. Do you guys really not experience any issues with the original Wii U Gamepad? Are you saying it's just an issue on my end? Did you use UWUVCI for the injects and set the Gamepad as a Classic Controller? I'd really like to figure out if this is a problem specific to me and if there's a fix for it (either hardware or software).
Click to expand...
Yes, I have injected the wii games via teconmoon or uwuvci to my wii u menu (either emulate as classic controller or force as classic controller connected) and I have never experienced those overflow effects which you have mentioned. The games respond on my wii u gamepad as good as on the real wii with nunchuck plus classic controller. Maybe you should buy a used wii u gamepad?
 
D00MGUY said:
I've had this Wii U since day one, I've never swapped the sticks. Do you guys really not experience any issues with the original Wii U Gamepad? Are you saying it's just an issue on my end? Did you use UWUVCI for the injects and set the Gamepad as a Classic Controller? I'd really like to figure out if this is a problem specific to me and if there's a fix for it (either hardware or software).
Click to expand...

I used to do my injects with Teconmoon, and most recently i tried the Ultimate Injector, yes, but more importantly, it happens with original Wii Virtual Console games too.
 
Osakasan said:
I used to do my injects with Teconmoon, and most recently i tried the Ultimate Injector, yes, but more importantly, it happens with original Wii Virtual Console games too.
Click to expand...
White Basic Version o Black Premium Version of the Wiiu?
 
Technician said:
Yes, I have injected the wii games via teconmoon or uwuvci to my wii u menu (either emulate as classic controller or force as classic controller connected) and I have never experienced those overflow effects which you have mentioned. The games respond on my wii u gamepad as good as on the real wii with nunchuck plus classic controller. Maybe you should buy a used wii u gamepad?
Click to expand...
White Basic Version or Black Premium Version ?
 
Hey everyone, BINGO!

I borrowed a black premium gamepad and swapped the two analog sticks. My theory was correct: the sticks on the white basic version are different (check out the second photo), and overall, some other parts look different too.

After doing the swap, I didn't have the overflow issue anymore. I expected the black pad to inherit this problem once I put the "faulty" sticks in it. But while the issue happened 10 times out of 10 on the white pad, it only happens about 3 or 4 times out of 10 on the black one. I can't really explain why.

Just to let you know, I bought a pair of cheap Wii U sticks with PCBs from AliExpress for about 5 euros. I want to find out once and for all if this overflow problem can be fixed for just a few bucks, without having to swap parts between the basic white and premium black versions. I hope the admins pin or highlight this thread so that anyone else dealing with this issue can easily find the solution. Ciao a tutti!
 

Attachments

  • IMG_20260517_114559715_HDR.jpg
    IMG_20260517_114559715_HDR.jpg
    2.3 MB · Views: 6
  • IMG_20260516_183053283.jpg
    IMG_20260516_183053283.jpg
    2.1 MB · Views: 6
  • IMG_20260517_114617481.jpg
    IMG_20260517_114617481.jpg
    2 MB · Views: 4
  • Like
Reactions: patters and Osakasan

Site & Scene News

Go to forum More news

Popular threads in this forum

Hacking Homebrew Project  Modernized YouTube for Wii U

[discussion] what game do you wanna see next?

[discussion] Paper Mario Wii U or Mario Kart 64 wii u?

Wii Games Performance on Wii U (vWii C2W Overclock) – Community Testing & Results Sharing

Gaming Homebrew Misc Project  Roséverse - a 1:1 Miiverse revival by Project Rosé!

Can the Wii u pro controller works for Wii games ?

[PRERELEASE] Sonic 3 A.I.R. (finally) Wii U

Sonic Advance 2 Wii U (another release, this time it's playable)