Each sensor reacts in accordance with increases and decreases in the fuel injection volume Standard

Tester Display (Sensor)

Injection Volumes

Status

Voltages

AFS B1S1 or AFS B2S1 (A/F)

+25 %

Rich

Less than 3.0

AFS B1S1 or AFS B2S1 (A/F)

-12.5 %

Lean

More than 3.35

O2S B1S2 or O2S B2S2 (HO2)

+25 %

Rich

More than 0.55

O2S B1S2 or O2S B2S2 (HO2)

-12.5 %

Lean

Less than 0.4

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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