EGT Sensors

[Diesel Pusher]

Can anyone tell me where the EGT1-5 sensors are located on the 2021 6.7l Cummins, and what are normal (min and max) range temps I should be seeing? I monitor temps with an Edge Insight CTS3 and those are areas of my concern. Thanks

 

[superjoe83]

#1 is right before the DOC, #2 is between the DOC and DPF, #3 is after the DPF, #4 is in the front of the SCR, #5 is in the SCR outlet

Normal temps vary depending on engine load and if it's doing a regen, normal regen temps are around 1050 degrees starting at the #2 sensor, under full load for an extended time you will see the temp get up to around 1000-1200 max on the front sensors, as the exhaust gas goes through the system it will cool some and the temp will decrease the farther you go back.

 

[Papa Red]

Welcome to the forum.

Red

 

[Dodgeman]

The above responses are not quite correct but superjoe83 is close. He is correct except for No. 4. It is mid-SCR, not in front. Clampguy1 has Nos. 3,4, and 5 incorrect. The locations are - #1 is right before the DOC, #2 is between the DOC and DPF, #3 is after the DPF, #4 is mid-SCR, #5 is in the SCR outlet.

 

[AH64ID]

Locating EGT Sensors and Normal Temperature Ranges on a 2021 6.7L Cummins​

EGT Sensor Locations​

On the 2021 6.7L Cummins engine, the Exhaust Gas Temperature (EGT) sensors are typically located in the following positions:

EGT1: Near the turbocharger outlet.
EGT2: After the Diesel Oxidation Catalyst (DOC).
EGT3: Before the Diesel Particulate Filter (DPF).
EGT4: After the DPF.
EGT5: Near the Selective Catalytic Reduction (SCR) catalyst.

Temperature Ranges
Monitoring these sensors with your Edge Insight CTS3, you should see the following normal temperature ranges:
EGT1: 400°F to 1200°F
EGT2: 300°F to 1000°F
EGT3: 300°F to 1000°F
EGT4: 200°F to 800°F
EGT5: 200°F to 600°F

For accurate readings and secure sensor connections, using high-quality components like the Cummins ISL/ISM/ISX 21021850 V band clamp is recommended.

Monitoring these temperatures can help ensure your engine operates within safe limits and can alert you to potential issues before they become serious problems.

1200° is a bit hot for any operation on EGT1.

EGT2-3 will get above 1000°F during active regen

EGT 4-5 will exceed 800° when towing hard or in active regen.

 

[Brutal_HO]

Locating EGT Sensors and Normal Temperature Ranges on a 2021 6.7L Cummins​

EGT Sensor Locations​

On the 2021 6.7L Cummins engine, the Exhaust Gas Temperature (EGT) sensors are typically located in the following positions:

EGT1: Near the turbocharger outlet.
EGT2: After the Diesel Oxidation Catalyst (DOC).
EGT3: Before the Diesel Particulate Filter (DPF).
EGT4: After the DPF.
EGT5: Near the Selective Catalytic Reduction (SCR) catalyst.

Temperature Ranges
Monitoring these sensors with your Edge Insight CTS3, you should see the following normal temperature ranges:
EGT1: 400°F to 1200°F
EGT2: 300°F to 1000°F
EGT3: 300°F to 1000°F
EGT4: 200°F to 800°F
EGT5: 200°F to 600°F

For accurate readings and secure sensor connections, using high-quality components like the Cummins ISL/ISM/ISX 21021850 V band clamp is recommended.

Monitoring these temperatures can help ensure your engine operates within safe limits and can alert you to potential issues before they become serious problems.

Spammer...

 

[CharlieL]

Good info. For me, a visual always seems to help.