Fig.1) Engine Idle after Warm Up

CH.1 - Pumping Current - Approx. 2.7V

CH.2 - Trim Resistor - Approx. 2.5V

CH.3 - Nernst Voltage - Approx. 2.7V

CH.4 - Virtual Ground - Approx. 2.9V

Fig.2) Approx. 2000rpm(A) & Fuel Cut(B)

A: Approx. 2000rpm

CH.1 - Pumping Current & Virtual Ground: - 0.5 ~ 0.4 V

CH.2 - Nernst Voltage & Trim Resistor: -1.0 ~ -0.0 V

B: Fuel Cut

CH.1 - Pumping Current & Virtual Ground: Approx. 0.89V

CH.2 - Nernst Voltage & Trim Resistor: Approx. 0.64V