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Home >> Chevrolet >> 1997 >> Astro Van Passenger, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - System & Component Testing 4.3L >> Fuel System >> Fuel Control >> Oxygen Sensor (O2S)
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Oxygen Sensor (O2S)

See ENGINE SENSORS & SWITCHES  .

NOTE: If injectors are dirty, they should be cleaned using approved injector cleaning procedure before performing fuel INJECTOR BALANCE TEST.
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