has anyone seen the code SPN 173 FM 3 exhaust temp sensor voltage too high?

[po-dunk rider]

Exhaust temp sensor voltage to high code

Has anyone seen the code SPN 173 FM 3 exhaust temp sensor voltage too high? Did it to me st the end of the ride today. Was riding in over the hood powder all day long. It was real spirattic though and seemed to only pop up at mid range rpm or after a longer pull at full rpm. Got home and now the code isn't on when pulled out of trailer into shop? Sometimes when the check engine light/code would come on it would go into limp mode. Once shut sled off and restarted it would be fine until triggered again randomly...

 

[ak]

Has anyone seen the code SPN 173 FM 3 exhaust temp sensor voltage too high? Did it to me st the end of the ride today. Was riding in over the hood powder all day long. It was real spirattic though and seemed to only pop up at mid range rpm or after a longer pull at full rpm. Got home and now the code isn't on when pulled out of trailer into shop? Sometimes when the check engine light/code would come on it would go into limp mode. Once shut sled off and restarted it would be fine until triggered again randomly...

I've seen this on my pro rmk when the exhaust sensor went bad. Check engine light was flashing and wouldn't run very well over half throttle.

Replaced with new and the light went out after a few mins of run time. Ran great after that.

 

[AKFULLTHROTTLE]

Yep, been through many over the years.

 

[po-dunk rider]

first thing that I thought of as well, I have replaced on my old dragon and pro before. Didn't know if that would be the case since it was saying TOO HIGH VOLTAGE?

 

[po-dunk rider]

Looks like they're the same as the pro ones so I'll switch out today see if that helps.

 

[cascadesnowjunky]

Yep replaced a couple on my pros I had.