While cleaning EGR valve I came across somewhere a post that said to clean EGR temp sensor
Which I thought initially it was the one with the gray connector I pulled it out and the sensor area was nearly plugged with soot later determined that the temp sensor was just behind and a little above it so whch sensor was almost plugged that i cleaned?
thanks

i have a lot to learn about this engine/model year truck

 

The grey plug is the MAP (Manifold Absolute Pressure) sensor.

The metal one is the intake temp sensor.