Atessa Playing Up?!?

[WhatBrake]

Hey guys I have a R32 GTS4.

Recently the ATESSA is playing up and ive already checked the fluid levels. When i'm cruising at say 100 down the freeway it's trying to transfer torque to the front wheels when it should all obviously be going to the back. You can feel the transfer case put some up at the front then stop and try again, meanwhile my front torque guage is getting anywhere up to 15kg's. I'm wondering what the hell is wrong with it? I have been told briefly about the attessa computer flashin up codes to let you know whats wrong, however i'm not hugely familliar with this? Also that if the ATTESSA senses it's stuffing up it is supposed to divert all power to the rear wheels as it's a safety issue and buggers your transfer case, but mine isn't doing that when ive had the fuse in. I think a possible problem is the G-meter is playing up, but i just wanted to know if anyone has experienced this at all in their R32 GTR/GTS4? If so any help would be VERY much appreciated!

Cheers guys

Edited December 12, 2007 by WhatBrake

[adam-__-]

Have you changed your tyres recently by any chance? Running wrong diameter tyres front and rear will 'confuse' the 4wd system.

[heller44]

^ Had these exact symptoms when i had new ever-so-slightly larger rolling diameter tyres put on the back.

The attessa fault codes are easy to read, the led on the unit in the boot flashes a certain amount of times for the fault code(s) with a pause in between each fault. Just search on here for the code listing.

[GTR-32U]

make sure all the wheels/tyres are exactly the same size.I had this problem in a GTS4 I had.It would pick up a small vibration and torque guage would start flickering slightly.Standard wheels back on problem solved

[adam-__-]

If you can't get all four tyres the same rolling diameter, put the larger rolling diameter wheels at the back.

[WhatBrake]

Hey cheers guys!

Yeah a few weeks ago I had my fronts changed (same tyres as before) but obviously they have more tread than the ones at the rear. And considering my rears are now due for a change, it seems a new set on the back should resolve the problem. I'l change them out the end of this week and see what happens. Still has been fun driving around in RWD for a few weeks, haha.

Take it easy

Rhys.