Xu10J4Rs Oil Temp Sensor

[ORB 227 1 Cars]

So, I know this has been discussed a lot in recent years, however I wondered if all is correct.

 

Since doing my conversion, I have never seen the oil temp dial move, at all. I have never covered any real distance with the car, but I have had it HOT.

 

Tonight for example, I ran the car up after draining the cooling system and re-filling with unclefreeze, and ran it for aout half an hour inside a warm garage, the fans came on three times and the engine felt physically hot. But, the dial had still not moved. I then unplugged the sensor and earthed it out, dial reads full.

 

Surely there should be some heat registering in the sump sensor?

 

NB - I am using a standard sensor from the engine. . .

[petert 586]

Yep, the XU10 sensors have a different temp vs resistance scale. Use the XU9 sensor if you want the same reading on the scale. I had to heat some oil in a tin and graph for use with my new dash.

[nour_peugeot 5 1 Cars]

i have same problem but now i'm using Defi gauges >>> it's nice

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[Anthony 1,003]

I found that the difference between an XU9 and XU10 sensor was minimal on the gauge when I swapped from an early sump to a late one on the same engine (thus swapping from XU9 to XU10 sensor at the same time). Probably around 5-10 degrees or so, and given that absolute value doesn't really matter with oil temperature and it's only there to give a relative indication, the XU10 sensor is fine IMO

 

It does take a while for the oil to warm up if you don't have a heat exchanger fitted, so it might be that leaving the engine ticking over in the current coldish ambient temperatures might not be sufficient to get the gauge to move. Certainly whilst driving it should rise after a few minutes though, and typically sits somewhere around about a third on the gauge (~90 degrees) on the road under normal driving.

 

You are using the correct pin on the XU10 sensor aren't you? Only one of them will work the gauge - it's the one that gives resistance between the pin and sump.

[wicked 103 3 Cars]

The RFS sensor is different from other XU10 sensors:

 

On servicebox it mentions something about 165 degrees for RFS sensor and 155 degrees for a S16 one.

On early XU9 it says 140 degrees, late XU9 has no comment, but I expect it should be 150 degrees, as the early XU9 dial went up to 140 degrees and the later ones upto 150 degrees.

 

If the RFS sensor is a 2 pin sensor, make sure you have proper grounding on 1 pin.

[ORB 227 1 Cars]

Hmm. I need to go look again...

 

I can't remember if the sensor has only one pin and the plug has two or vice versa!

 

I know when I earthed the plug I got full signal on the dial

[cheesegrater 43 1 Cars]

The plug has two pins one will give you a reading the other will not. Remember you've got a nice big aluminium sump on the GTI6 which will dissipate the heat better than a tin sump.

[nour_peugeot 5 1 Cars]

i did't thanks guys