MPV ES V6-2.5L DOHC (2001)
Lower stream HO2S graph line
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If the ratio is 2 or more or no lower stream HO2S inversion, the WU-TWC is functioning properly.
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If the ratio is less than 2, the WU-TWC is not functioning properly. Replace the WU-TWC.
Equation
3.7 (good converter) = 26 inversions (upper stream HO2S inversions) + 7 inversions (lower stream HO2S inversions)
Equation
0 (good converter) = 26 inversions (upper stream HO2S inversions) + 0 inversions (lower stream HO2S inversions)
Equation
1.4 (bad converter) =26 inversions (upper stream HO2S inversions) + 19 inversions (lower stream HO2S inversions)
