15 ltx-dx idle issues

[yaaamaaahaaa3]

My 15 Viper is idiling between 1360 to 1610 rpm. I changed plugs and checked coils all are good. The belt was a little tight, removed shims on secondary and deflection is in range. I just put 800 plus miles in the last 2 weekends so new gas. Am I missing something?

 

[PAvector]

I have the same issue. Think it’s time for a new O2 censor but not sure.

 

[yaaamaaahaaa3]

I have the same issue. Think it’s time for a new O2 censor but not sure.

Good call, I didnt even think about that, gas mileage has dropped as well.