Camry Sedan 4-Door L4-132 2164cc 2.2L DOHC (5S-FE) (1995)
Oxygen Sensor: Oscilloscope Patterns and Waveforms
INSPECTION USING OSCILLOSCOPE
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With the engine racing (4,000 rpm) measure wave form between terminals OX1 and E1 of Engine Control Module.
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The correct waveform appears as shown in the illustration, oscillating between approximately 0.1 volts and 0.9 volts.
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If the oxygen sensor is deteriorated, the amplitude of the voltage is reduced as shown on the left.