Car Civic EG K20A2
ECU PRB,
Kmanager 4,1,5
A while back when started to tune, i had only my stand alone MTX-L Wideband as primary O2 was shot, tuner adviced to get a new Primary O2 sensor so we could run in close loop for better performance.
Got the denso O2, he then pointed out that my Wideband reading was off. although i had a voltage correction of -0.03 matching the kpro display
So i did datalog and upload it to kpro i paused the datalog to where it showed a dead 12.8 AFR (wideband reading) then changed to display primary O2 and it was reading 12.3 so roughly it is off by .5 AFR
Is this normal? both sensors were new, ,aybe a month a part.
Attached calibration in case you guys notice something
Primary O2 AFR vs Wideband
Primary O2 AFR vs Wideband
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