Help!

[Deli Rep]

Hi all

I recently had the dash of my 34 GTR pulled apart to fix a leaking heater core. The issue is rectified, the dash is back together, but now the factory display (where it shows temps, revs, boost etc) is displaying only oil temp, and the water temp line is flashing red and displaying 130 degrees.

According to the Power FC everything is as it should be... Does the computer need a reset, or...?

Has anyone else experienced this before, or know what to do?

Thanks

Bec

[Carbon 34]

Hi all

I recently had the dash of my 34 GTR pulled apart to fix a leaking heater core. The issue is rectified, the dash is back together, but now the factory display (where it shows temps, revs, boost etc) is displaying only oil temp, and the water temp line is flashing red and displaying 130 degrees.

According to the Power FC everything is as it should be... Does the computer need a reset, or...?

Has anyone else experienced this before, or know what to do?

Thanks

Bec

YEP !!! only mine is a GTT R34 with jap sat nav but if you unplug the wiring or remove the battery it comes up as PIT with a wrench on the screen , and needs a reset.

I didnt worry about it because its being removed this weekend for another setup. but if I remember right I saw the fix on the UK Skyline clubs site or Nissan should be able to reset the computer for you ?

???? are you certain you bleed the air out of the cooling system it might actually be hot ? you need to turn the heater on full heat to fill the heater core properly when its drained dry ? and recheck it often in the first few days.

it can also be a bad ground in the dash for the unit or a loose/corroded plug on the thermostat wire for the sensor on the dash, it measures resistance to read the temp.

Edited December 24, 2008 by sapphiregraphics

[Deli Rep]

YEP !!! only mine is a GTT R34 with jap sat nav but if you unplug the wiring or remove the battery it comes up as PIT with a wrench on the screen , and needs a reset.

I didnt worry about it because its being removed this weekend for another setup. but if I remember right I saw the fix on the UK Skyline clubs site or Nissan should be able to reset the computer for you ?

???? are you certain you bleed the air out of the cooling system it might actually be hot ? you need to turn the heater on full heat to fill the heater core properly when its drained dry ? and recheck it often in the first few days.

Hey thanks for the response... The system was pressure tested, and the Power FC and normal water temp guage in the dash cluster itself are both telling me the actual water temp of the car is fine...? Hmmmmm... Electrics hey? LOL

[Inline 6]

u might wanna try and post about that in the maintenance section if you havnt already as there aint many 34 gtr owners in sa

[Carbon 34]

Have you looked at the flashing codes on the ECM yet? before tearing into the dash/engine harness, I would check that out it may point to a sensor failure to narrow it down quicker ? Run the R34 GTR diagnostics , your ECM is prob in the same spot as most nissans, behind the passenger or drivers side kick panel (not positive with GTR R34), side bit with 1 screw holding it a and slides back toward you and might have a plastic nut holding it to the firewall (most are missing that bit) and the trim on the door sill on some cars might need to be popped off and unscrewed to get the panel off if its too tight. some also have a inspection port with a rubber plug covering the blinking LED on the ECM without taking off the panel , check first !!!

pretty sure the ground point for the cluster is in a different spot then the other dash gauges, on a different harness , so its very possible to get two readings,1 good 1 bad from screen?

if the dash was out its prob not grounded properly since it relies on resitance to be right to register the right temps. most of the harness grounds meet up behind the radio , A/C area on the metal bar in front of the heater core on mine, yours should be the same , Nissan keeps things consistant on there cars?

Its pretty suss to have your heater core leak on a R34 ? was the car running just water or mixed coolants to corrode the core so quick?

it could be a corrosion problem on the single wire terminal on the sensor which will be picked up by the flashing ECM LED's ? I know its not the same exactly but my R31 with RB30(same engine breed, same sensor locations for the most part) had that issue with corrosion on the sensor, cut it off and soldered a new connector to it. worked perfect no other issues.

it shouldnt be that hard to find the issue with a few ECM tests and digital volt meter? maybe someone on this site has the ODBC II code reader for the Skyline ? with that you can reset the ECM too ?

good luck hope that helps a bit and yes I'd move the post to the national site per inlines suggestion lots more R34 GTR interstate ?

Edited December 24, 2008 by sapphiregraphics

[Deli Rep]

Thanks for your help guys, have posted on other forum also as suggested Thanks again

[Carbon 34]

Hey mate just came across this up in the UK it has the pin out wiring diagram for the R34 GTR MFD and functions list

http://www.skyline-owners-club.com/forums/...eens-modes.html

since they have a lot more R34 GTR in the UK and lots more members as well it might be better to post up there ?

good luck it might help troubleshooting

Edited December 30, 2008 by sapphiregraphics