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Waveform 2

Heated oxygen sensor signal

WAVEFORM 2 REFERENCE CHART

ECM Terminal Names Between OX1B and E2, or OX2B and E2
Tester Ranges 0.2 V/DIV, 200 msec./DIV
Conditions Engine speed is maintained at 2,500 rpm for 2 minutes after sensor is warmed up

HINT:

In the DATA LIST, item O2S B1S2 shows the ECM input values from the heated oxygen sensor.

Fig 1: Identifying Waveform 2
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