Bnr32 Front Torque Gauge

[CAY570]

Hi All,

Recently had a problem with my front torque gauge where the needle is not moving and showing torque distribution to the fwd. So i assume it's running on rwd. The funny thing is that there's no 4WD error lights on and i check the rear attesa ecu, there's no red led light blinking, i have check the g sensor and the indicator is ok, not in red color, check the attesa rear reservoir when the ignition on, fluids on the right level. when i switch on the ignitiion on i can hear the attesa pump is working.

i recently changed the gear box oil and front diff oil. gear box oil i used redline heavy shockproof. front diff i sue the same oil as well. but after reading through this forum or gtro found that shockproof oil doesnt do well in diff, so i changed to castrol manual transmission oil, and problem still there.

so i am really confuse as where the problem lies or is the front torque gauge not working? othes gauges in the console working fine though.

Please help.

Thanks

[SiR_RB]

do a launch and see what happens, does it fry the rear tyres or does it grip and go?

should tell you if its just a faulty gauge or something mechanical

[doo doo]

you can try a bleed procedure just to see if the gauge works when the pump works. Take the drivers footwell trim out, there's a white plug that you unclip to activate the attessa bleed. Turn the ignition on (not engine), wait for fuel pump to finish priming (this might also be what you hear as I don't think the attessa pump primes on ignition) then unplug- you'll hear the attessa pump prime and the gauge should move too (up to half way). If your attessa system is not working and hasn't for a while the awd warning light can burn out- it should light up with the key turned to ignition.

[32vspec2gtr]

Mate just because the g sensor indicator is showing ok doesn't mean that its working properly. The indicator is only a shock loading indicator and the sensor can still be faulty as this happened to me. Good luck with it anyway mate

[CAY570]

the best bet now i think is do a bleed on the systems and see how it goes. Need to refer back to the manual for the full procedures. anybody knows which page? i did turn the ign on and unplug the two terminal on the g sensor and 4wd light pop out right after. plug it in the light still there and need to turn ign off and on then it's gone.

[doo doo]

pages are CH 84 and CH 85 for bleed procedure.

[GTR_JOEY]

Have you had ur wheels balanced lately, or a wheel alignment?

Mine did the same thing after a dodgy alignment, the 4wd was definalty working cause I launched the thing hard on the highway lol

Anyway I didn't worry about it too much untill a couple of months later when I bought some new tyres and had a new alignment and balance etc then all of a sudden it started working again

Edited November 29, 2011 by GTR_JOEY

[GTR_JOEY]

If that doesn't help I've also posted the correct bleeding procedure in this thread

Good luck

http://www.skylinesaustralia.com/forums/topic/380368-my-32-gtr-switches-from-4wd-to-rwd-on-its-own/page__p__6069141__fromsearch__1#entry6069141

[CAY570]

Well I did swap the rear tyres to the front.

[GTR_JOEY]

Could be ur problem mate, I'd be getting a wheel alignment

Hopefully fixes ur problem

[CAY570]

Problem solved. Swapped the original rear tyres and rim back from the front. The rear tyres and rims looks a bit wider than the front. Thank you all.

[GTR_JOEY]

Cool.. Love the easy fix

[CAY570]

Such a sensitive car.

[doo doo]

are you running staggered wheel sizes?

[CAY570]

nope, i triple check all four rims are 17x9jj off+15. even tyre size are the same 255/40R17. just that the rear tyres are newer than the front and i measured the tyres width with a ruler, the rear is wider around 0.5cm.

[blind_elk]

Might be same size, but if they are different manufacturer or different model by same manufacturer, then they could be slightly different. The width is generally "nominal". It's the rolling diameter / circumference that is important.

It was odd that you got the problem you had. Ordinarily, the symptoms would be a jerkiness in the AWD system, because ATTESSA sees the slightly smaller (older) rears "slipping"" relative to the (newer) fronts.