Water Temperature Gauge Not Working

[SiR_RB]

my water temperature gauge on the dash cluster doesnt work, well it does abit, sometimes it might move just a fraction above Cold then afew minutes later it drops back to bone cold...

my power fc hand controller is showing 80 degrees at operating temp during driving,

im assuming the power fc and the gauge on the dash use the same water temp sensor?

if so then i guess my dash gauge is stuffed ?

any help or advice to fix this would be appreciated

thanks

[Moodles2]

Pretty sure it's the same sensor, the factory water temp gauge is useless anyway. I've seen mine go over 105C at the track and it was still in the same position as 80C daily driving (needle in the middle).

[jhjones]

It's where the top rad hose joins the engine. 2 pin sensor is ECU, 1 pin is dash.

[SiR_RB]

thanks for the reply

its the sensor on the bottom of the radiator yes? if its the same then my sensor works....gauge doesnt

[Moodles2]

I think the one at the bottom is the one for the A/C fan when it reaches 95C+

[SiR_RB]

Will check the resistance of the sensors on the weekend, never new they were near the top radiator hose

[blind_elk]

Yes, the 2 sensors in the top radiator hose are for temperature - 2-pin = ECU, 1-pin = gauge.

Simple way to test the sender/gauge, with ign @ ON, earth the wire to the sender - if the gauge goes full scale, then the gauge is working, sender more than likely is bung.

[SiR_RB]

Awesome exactly what I wanted to know !

[jeffworld2]

Anyone know where i can order one? i'm nowhere near a nissan dealer. There must be one on ebay somewhere

[Moodles2]

http://www.kudosmotorsports.com/catalog/nissan-sensor-water-temperature-genuine-nissan-skyline-r33-all-r34-excluding-gtr-p-906.html

[SiR_RB]

ok did the earth test and gauge shot up to full with the ignition ON !

so temp sensor is stuffed, how do these fail? there are no moving parts, how do they work? with resistance?