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Home >> Suzuki >> 1998 >> Sidekick JS, 2D Utility, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Heated Oxygen Sensor (Ho2S) No. 1
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Heated Oxygen Sensor (Ho2S) No. 1

  1. Start engine and allow it to reach normal operating temperature. Pull back seal at HO2S No. 1 connector. Using a voltmeter, backprobe HO2S No. 1 connector between sensor signal and sensor ground terminals. See Figure .
  2. Increase engine speed to 2000 RPM and hold for about one minute while observing voltmeter. Reading should fluctuate between zero and one volt, without being constantly high or low. If voltage is not as specified, see DTC P0131-P0134 in TESTS W/CODES article.
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