Cm870 code 2272 egr position sensor voltage

[trucklogger2]

One test you can try; grt a small thin tin clip or a 60ohm resistor (60 cuz it works in the low coolant sensor harness and sensors all work in the same voltage range) and short the harness (plug). Check for continuity in other words. This will isolate (hopefully) your problem to either the wiring or the sensor. Or, if you have another truck with that sensor in it, try swapping for testing purposes. Maybe it works maybe not but it just a time investment,tnx
Turn the key on, jump the plug contact pins, have someone look at your dash cel.