• The PCM determines the engine operation conditions based on input signals and sends an operation signal to the front or rear HO2S.
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1
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ECT sensor
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2
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IAT sensor
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3
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CKP sensor
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4
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TP sensor
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5
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MAF sensor
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6
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BARO sensor
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7
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Battery
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8
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Front HO2S heater
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9
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Rear HO2S heater
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