Jump to content
SAU Community

4wd In R32 Gtr Not Working

Jez13
 Share

Recommended Posts

Jez13 Mentor

Jez13

Posted
Posted

I started my car up one morning and the 4wd light stayed lit. Flicked my custom 4wd switch a couple of times but it would not fix. Checked the 4wd fuse and it is still active. There are no strange noises coming from anywhere (nothing loud enough to hear anyway). The car opperates fine, besides being in rwd mode. Has anyone else had a similar issue? Or does anyone know what the problem might be? My guess is it might be something electrical not working anymore...

Link to comment
https://www.sau.com.au/forums/topic/290941-4wd-in-r32-gtr-not-working/
Share on other sites
Jez13 Mentor

Jez13

Posted
  • Author
Posted
Take the plugs out of comput in boot under the rear parcel tray & clean & reconnect. My car does it quite reguraly it seems to work for me. Think me have faulty plug.

thanks guys, will try both at lunch and let you know how I went. Cheers!

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)

sounds like the tps is faulty or not adjusted to read 0.4V at key on. The Attessa looks for this voltage and if too high or low will not allow the 4wd to work.

Edited by DiRTgarage
Jez13 Mentor

Jez13

Posted
  • Author
Posted
sounds like the tps is faulty or not adjusted to read 0.4V at key on. The Attessa looks for this voltage and if too high or low will not allow the 4wd to work.

Bugger. So no simple fix here I see. I wonder if the fact that I have a 33 gtr engine and a 32 gtr gear box has anything to do with it. I can't see why it would though.

post-59308-1254883850_thumb.jpg

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Bugger. So no simple fix here I see. I wonder if the fact that I have a 33 gtr engine and a 32 gtr gear box has anything to do with it. I can't see why it would though.

i think from memory the wire at the attessa is purple...check the voltage of that to ground.

Jez13 Mentor

Jez13

Posted
  • Author
Posted
i think from memory the wire at the attessa is purple...check the voltage of that to ground.

checked from the hicas and voltage does not move from the control unit in the boot after pressing the accelerator and yes the ignition was on. However the purple wire going into the pfc was working fine, so the fault must be with the pfc. Either way I have to take it to a mechnic that knows pfc's (can anyone recomend in hills district?) becuase all my electrics have just decided to go spastic like I have dropped a major earth. My stanard guages oil pressure is reading 10 bar (off scale) but my after market guage is reading 50 psi. Whenever I use the blinker the power steering turns off every time the blinker emits and then turns on every time the blinker is off. So turning a corner with the blinker is on (power steering off, on, off, on.....). Same goes for braking and basically anything electrical. Kind of scary now.

Jez13 Mentor

Jez13

Posted
  • Author
Posted

Turns out it was only a bad earth. All electrics are now working again and even my 4wd. Thanks magic bolt and now I can still go to putty road. Thanks dirt garage and co for your advice...such a simple fix, slightly embarrassed but mostly releived.

  • 1 year later...
zr200 Enthusiast

zr200

Posted
Posted

my r32 gtr did this at the local drags yesterday.

had 3 runs, then lined up again and the anti-lock light lit up on the dash.

went to do a burnout and only had rear wheel drive.

after the run, which was basically a powerskid, i checked all fuses but nothing seemed wrong.

started the car again and the light had gone out. lined up for another run and while waiting the anti-lock light came on again. 2wd again.

is the fluid resevoir in the boot anything to do with the atessa, or only hicas? and is it normal for it to drop to minimim level when hot, but be on full when cold.

want to go to willowbank this wednesday so want to get it sorted.

guess i will start with the atessa ecu, then check for any loose earths.

any advice would be appreciated.

zr200 Enthusiast

zr200

Posted
Posted

is it a common problem for the 4wd light on the dash not to work.

mine dosent work, and i just pulled the dash apart to hopefully replace the bulb, but the bulb was fine.

has never lit up since i have owned the car??

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      S1 rb25/s14 starting problem

      By Duncan · Posted

      Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Sorry. Front brake calipers
    • MBS206
      S1 rb25/s14 starting problem

      By MBS206 · Posted

      Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...