Hi this is nissan cefiro/infiniti A/T V6 YOM 2000 both front O2 sensors not switching Voltage is B1 0.3v B2 0.2v B1 O2 voltage occasionally Jump to 2.55v B1 Alpha = 100% B2 Alpha = 87% Temp 90C to 95C max MAF 1.4V .No codes and Car Drives Well.

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