Signal Waveform & Data

Fig 1: Screen Display - Engine Idle After Warm-Up

Courtesy of KIA MOTORS AMERICA, INC.

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. 2.9Vs

Fig 2: Screen Display - Approx. 2000 RPM (A) & Fuel Cut (B)

Courtesy of KIA MOTORS AMERICA, INC.

1. Approx. 2000 RPM

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

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

2. Fuel Cut

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

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

   * Testing Procedure: Connect Channel (A) positive probe to Pumping Current and Channel (A) negative probe to Trim Resistor.

   Connect Channel (B) positive probe to Nernst Voltage and Channel (B) negative probe to Virtual Ground.