a/f gauge seems to be stuck

[kuvasz]

i took the sled into the shop yesterday to tinker with the clutches and give everything the once over. when i fired the sled up the a/f is stuck at 14.7. i could tell it was doing it's usual start up with running lean in the beginning then running rich and settling back at idle(which was 12.3). when i move the sled around in the yard you could tell the machines running fine.
anyone else ever have this problem? i tried disconnecting the gauge, still goes to 14.7 when i turn it back on. royals having a 25% off sale and i think i'm going to buy a koso a/f,boost and temp gauge.

 

[stone88]

Your O2 sensor is probably done they dont last to long with race gas, just replace it and you should be good.

 

[kuvasz]

thx ernie, boy they don't last long? i installed new one the beginning of march last yr and i've only had the sled out a couple of times. i even bought the better sensor as well becuase of the leaded race gas.

 

[kinger]

Nope they don't last. I'm on my 3rd in 4 seasons and just yesterday same thing as yours 14.7. So looks like it's about 1 a season or every 1000 miles