My AFR reading from my wideband O2 is always a little richer than the commanded AFR even though the STFT's are adding and subtracting fuel. The computer thinks it's hitting the 14.68 mark by using the STFT (pulls up to 2% fuel) but the actual AFR is more like ~14.2.
How to get them to match up closer? Do I change the B4105 O2 switch points to lower numbers then 450? It seems that I need to start lowering the numbers so the computer will switch at a leaner point. Am I on the right path or is there a better way?
Lee