Playstation2 controller modification?

[enknt]

Hi,

I've got a Playstation 2 and play Gran Turismo 4 but my left arm is paralysed so I need to use my right hand only to play it. I've remapped the steering onto the right stick and use the r1/r2 buttons for accellerate/brake.

Even though I've remapped the accellerator/brake onto the r1/r2 buttons the right analogue stick up/down still works as accelleraor/brake and I want to stop this.

I believe this is a well known thing with GT4. I'm finding with the more powerful cars that I'll often accidentally accellerate or brake slightly whilst trying to steer with the right stick screwing up an otherwise decent lap.

One idea I've had is to modify a dualshock2 to disable the y-axis of the right analogue stick to use just with GT4, does anyone know where I can find any info or advice about doing this?

Alternatively are there any adaptors etc that allow you to turn off the y-axis on the right stick or to just swap the functions of the right & left sticks (that would do the trick!).

Lastly are there any other solutions I've not thought of? (I dont want a steering wheel, they're too big for my flat!)

Thanks,

Ken Taylor

[Samstag]

I've never had a PS2 controller open but I'll take a shot.

The generic PC gamepads I've had apart have X and Y pots on each analog stick.  If you were to cut the circuit board traces on the Y pot it would be permanently disabled.  The Y pot is going to be on the left or right side of the stick.  It should have three connections to the board.  The center should be the wiper and the only one you need to interrupt, but to be safe you can cut all three.  A hobby knife should do the trick.

If this is confusing let me know and I'll try to get a decent picture illustrating what I mean.