I really need some of what he's smoking
I don't recall having ever seen an EGT sensor in our cars. The PID for EGT sensors in the ECU doesn't respond, although they might be using proprietary codes - they have in the past. I suggested it might be the EGR because a) it's often confused with "EGT" and b) quite a few D40s have been back to Nissan to have their EGR valves replaced.
If you've got a method of querying the ECU (eg OBD BT port + Torque Android app) have a look at the response to Mode 1 PID 78 and PID 79. It should return a bunch of data that changes as the engine gets loaded up (it's a complex, special pair of PIDs that define the sensor type and two bytes that represent the temperature calculated in the normal fashion of 256*A+B-40 to give it a range of -40C to 6513C.
These vehicles definitely do have 3 EGT sensors. a lot of late model YD engines do. Its the EGT sensor closest to the turbocharger that is failing and has been recalled. This has been call EGR sensor by a lot of people on the forum. Maybe people will believe me now!!
Come on dave your missing out on all the fun by owning a dmax lol, and old tony I,m not very tech savvy so would a scan gauge give the egt read out because my phone is only a shitter cheers
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