Code P0426 and P0428

[Preacher79]

When I scan vehicle code P0428 is set . When looking at data with KOEO the cat egt sensor is reading 1832 degrees but after driving it drops down to 560- 600 range . My question is isit the sensor in the exhaust manifold or the one on top of the dpf ? Any help would be appreciated
My truck is a 2015 ram 1500 ecodiesel

 

[Tremper126]

It should be the first one AFTER the turbo, NOT the one in the manifold by the turbo. The one I have here is missing those parts otherwise I could climb under it to tell you / take pic. It’s my understanding the one in the manifold is for turbo protection. On your scan tool that one should show up and read as normal, should be EGT11 or Turbo inlet temp. After the turbo becomes bank 1 sensor 1 and so on Down the line.

 

[Preacher79]

It should be the first one AFTER the turbo, NOT the one in the manifold by the turbo. The one I have here is missing those parts otherwise I could climb under it to tell you / take pic. It’s my understanding the one in the manifold is for turbo protection. On your scan tool that one should show up and read as normal, should be EGT11 or Turbo inlet temp. After the turbo becomes bank 1 sensor 1 and so on Down the line.

Thanks I will snapshot data on scanner when I am able and post