6 V6-3.0L (2007)
Downstream HO2S graph line example 1
Equation
RATIO = 30 inversions (upstream HO2S inversions) - 5 inversions (downstream HO2S inversions) = 6.0 (good WU-TWC)
Downstream HO2S graph line example 2
Downstream HO2S graph line example 3
Equation
RATIO = 30 inversions (upstream HO2S inversions) + 27 inversions (downstream HO2S inversions) = 1.1 (bad WU-TWC)