Jump to content
SAU Community

Recommended Posts

Hey all,

I am having some problems with 4WD in my R32 GTR, I have searched and read every other post but all other probs seem different to mine.

Basically I am getting no 4WD light on, no error code leds, have checked fluid level etc. etc. I am thinking that my attessa computer is fried (had an alternator power surge few weeks ago) but I was wondering if someone can let me know how to test this before I go and buy another one. It is going to an Auto elec on Thurs and he also hasnt had any experience fixing this so some steps in the right direction would be great!

Cheers,

Mitch.

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/
Share on other sites

The AWD light is a warning light, signalling that there is a problem with the ATTESSA system. If you don't get the light on (other than when you initially switch to IGN), then there is nothing wrong with ATTESSA.

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4307440
Share on other sites

First thing to ascertain- does your 4wd light come on when you turn the key to ignition? If not the bulb is blown. Do you get a gauge reading for the AWD under acceleration?

Thanks for replys :(

No it doesnt, so the bulb must be blown. And no gauge reading, car is definately running 100% RWD...

When my alternator surged it blew lots of other things in the car (including globes in the dash, so its probly blown 4WD one then aswell, also relays, headunit, fuses (since been replaced) etc.), and it is since this time my car is only running RWD. Given my alternator has blown so much stuff up I was thinking it may have done the attessa computer too.

Would there be anything else electrical I should get Auto elec to check and is there a way anyone could point out to test this computer before buying a new one.

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4307786
Share on other sites

i would have thought that there would be a protecting fuse that blows before the et-s computer would be damaged. Got the wiring chart (in 2 parts ) for the et-s system for what it's worth. Can you try another known working computer?

Picture_clipping_2.zip

Picture_clipping.zip

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4308963
Share on other sites

Couple more trouble shooting pages that might help you out, don't forget to check the fuse for the attessa pump too.

Picture_clipping_3.zip

Picture_clipping_4.zip

Picture_clipping_5.zip

Picture_clipping_6.zip

Edited by doo doo
Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4308981
Share on other sites

ABS

Just force the brkes to lock up, see if the ABS does its job.

ABS has been taken out.

i would have thought that there would be a protecting fuse that blows before the et-s computer would be damaged. Got the wiring chart (in 2 parts ) for the et-s system for what it's worth. Can you try another known working computer?

Yea I dont know how surge got past fuses but almost all of them were blown and it blew headunit etc. which is on a fuse, so im not sure how that happens???

Anyways thanks again for suggestions and thanks doo doo for links, ill check em out now :)

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4308991
Share on other sites

Hmm pics dont work doo doo, looks like they are in some mac format...

Yeh bugger, they are and they need to be unzipped and downloaded. (know someone with a mac?) They basically do the whole troubleshooting thing so get a download of the manual from somewhere online and check it out- I reckon you'll save yourself a fair bit of grief.

Edited by doo doo
Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4309476
Share on other sites

Yeh bugger, they are and they need to be unzipped and downloaded. (know someone with a mac?) They basically do the whole troubleshooting thing so get a download of the manual from somewhere online and check it out- I reckon you'll save yourself a fair bit of grief.

Nah dont know anyone with a mac... I do have a R32 workshop manual and have found the pages relating to the attessa system, ill check these and get them to the auto elec to see if he can do anything with em..

Thanks for you help anyways mate!

Link to comment
https://www.sau.com.au/forums/topic/248217-4wd-attessa/#findComment-4311447
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • This. A 3d wheel alignment is like $120...just take it to the shop. Since theres probably multiple adjustments that need to be made after changing something. Mine has front/rear lower arms, traction rods, tension rods, camber arms, toe arms, front upper arms, hicas kit, sway bars and coilovers. I measure from the edge of the bolt holes on the originals and set the same length on all the adjustable stuff to dial it as close as I could to OEM. Took it straight for alignment; it didnt feel right at all...after alignment, it feels perfect. Similarly i've just changed the springs on another car; and I still needed multiple adjustments to bring it back in spec.
    • A full Veilside kitted JZA80 Supra in Meriken park in Kobe city a few weeks back
    • Its a well known brand in New Zealand; its a rebrand of the Rhino RAV3.  I don't know what the wiring difference *is* between the rev.1 (installed about 15 years ago) and rev.2; but as you say I would think its reasonable that it uses the same immobiliser relay circuits. I had a look but couldnt see a similar harness; but didnt move things around since I didnt want to mess with it   It was one of AVS well known Authorised Installers; I spoke to AVS themselves about it but theyre unsure hence seeking advice more so from the skyline community who are more familiar with the actual car and its wiring. Im in Auckland; but the installer is on the other side of the city so hes very reluctant to come back to even look at it to confirm something isnt connected into the wrong wire.  I dont want to drop the name since they *did* do a really good job for the most part. Everything is very tidy and he fully replaced all the alarm wiring, all the sensors, the wiring to the door motors, installed a switch which was never installed in the first place...really happy with the alarm install itself..just not this one issue. We all make mistakes, if it is the alarm, I just want my fuel pump getting proper switched, fused, power as it was; without having to shell out for an auto electrician to switch a wire and tell me it was the alarm. 
    • Even with the piston at TDC there was room for it to drop, but I don't think it can drop fully into the cylinder, the problem you have is that you need something pushing against the valve to hold it up so you have enough room to put the new stem seal on and the spring etc.  I used compressed air only because putting rope in the cylinder seemed a bit risky to me, I know people have done it countless times before like this. Overall it's a pain in the ass job. Honestly you'd probably be better off taking the head off because the risk of dropping something in the engine and the finicky-ness of it all is very stressful. If you are going to attempt it though i 10000% recommend a 36050 valve spring/keeper tool. I had both the traditional lever type and after doing 1 cylinder it was absolute pain to get those valve keepers in place, even with 2 people. That 36050 is amazing, you do have to push hard to get them in place but it works perfectly almost every time. Back to my actual issue I think my engine is just tired and old and the rings have gone bad. The comp numbers (cold, no oil) were: Cyl 1 -129psi Cyl 2 - 133psi Cyl 3 - 138psi Cyl 4 - 137psi Cyl 5 - 157psi Cyl 6 - 142psi   Cylinder 5 and 6 having the most carbon on them.
    • Who did you have do the installation? I actually know someone who is VERY familiar with the AVS gear. The main point of contact though would be your installer.   Where are you based in NZ?
×
×
  • Create New...