Mazda 6 2002 - Page 139

F42
EMISSION SYSTEM
Upstream HO2S graph line example
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 converter)
End Of Sie
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