P38A temprture gauge sender

ovalandrover · 2025-08-07T17:46:54+0100

Does anyone know where NANOCOM reads the engine temprature. Is it the front sender unit on the head as my Nanocm does not read the water temperature above 60 c and im sure its running hotter than that but the car gauge is reading right in the middle if it is the front sendr unit does anyone know the part no
Thank you in advance

Datatek · 2025-08-07T17:59:52+0100

ovalandrover said:
Does anyone know where NANOCOM reads the engine temprature. Is it the front sender unit on the head as my Nanocm does not read the water temperature above 60 c and im sure its running hotter than that but the car gauge is reading right in the middle if it is the front sendr unit does anyone know the part no
Thank you in advance

The sensor for the gauge is separate from the one for the EDC, if the gauge is in the middle, then the temperature is above 80C.
I can never remember but I think the sensor between cylinders 3 & 4 is for the EDC and the sensor between 1 & 2 is for the gauge. Easy to prove, unplug the front one.

mystery · 2025-08-07T20:12:43+0100

as Datatek mentioned

Mark Piercy · 2025-08-08T06:58:41+0100

ovalandrover said:
Does anyone know where NANOCOM reads the engine temprature. Is it the front sender unit on the head as my Nanocm does not read the water temperature above 60 c and im sure its running hotter than that but the car gauge is reading right in the middle if it is the front sendr unit does anyone know the part no
Thank you in advance

Your running a diesel?

Mark Piercy · 2025-08-08T07:07:40+0100

this is of more use my mate

Just to give you an idea of where to look.
The later m51 had three sensors, the one closest to the bulkhead is the last minute sensor when it puts the fans on... Normally too late late at that point.
The earlier engine has only two.
As our mate Keith says. One for the engine ecu and one for the gauge in the dash.
The engine ecu temp can cause other faults with fueling and delayed gear change issues.

Mark Piercy · 2025-08-08T07:08:51+0100

mystery said:
as Datatek mentioned

Although very helpful kiddo, this image doesn't relate to his engine.

P38A temprture gauge sender

ovalandrover

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mystery

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Mark Piercy

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