Ok, I am having a problem with inconsistant actual AFR'S throught the entire map. In open loop they vary about 1-2 points on most cells, but some cells are always almost dead on???
In closed loop, the AFR varys up to 5 AFR points!!!, but the overall average is more consistant.
I have not been able to track this down to anything except maybe turbine speed?? Through out the range the turbine could be spinning at slightly different speeds making the AFR vary. I think it varys wider in closed loop due to the compputer trying to maybe overcompensate.
Also, in closed loop the pulse width will go down to arounbg 1.28 and run lean enough, but in open loop it normally stays around 1.45?? Odd hey??
Any one with deep thoughts?? (Not by Jack Handy)