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Question regarding closed loop

Todd Beenen

Expert
Joined
Feb 16, 2020
Messages
252
Age
61
Location
Michigan
Country
USA
Snowmobile
2020 T-Cat
What are you guys seeing at idle for afr ? On TD’s site it says low 11’s at idle, mines at mid 12’s, just wondering in my sensor is bad, or that’s fine?
 

What are you guys seeing at idle for afr ? On TD’s site it says low 11’s at idle, mines at mid 12’s, just wondering in my sensor is bad, or that’s fine?
That is fine, what you need to monitor is WOT afr and cruise.... Mid 12's at WOT will produce the most safe power...
 
I had this screen shot if numbers off td’s site, is why I asked
 

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soo we had a thread on this last year both myself and Knapp are seeing only in the 11-12's while warming up, after that ours were in the high 13's
 
What are you guys seeing at idle for afr ? On TD’s site it says low 11’s at idle, mines at mid 12’s, just wondering in my sensor is bad, or that’s fine?
Would say normal, don’t worry about idle afr too much if running good. Also the closed loop does not adjust at idle it is speed activated.
 


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