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Atmospheric Pressure Sensor

  1. Disconnect airflow sensor connector. Install Harness (MD998463 ) between unattached connectors. See Figure . Warm up engine and bring to normal idle.
  2. Measure voltage between terminals No. 3 (Green) and No. 4 (Black). Slowly cover about half of air cleaner intake. Voltage should drop as air intake is covered. If not, replace airflow sensor assembly.
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