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Home >> Jeep >> 1990 >> Comanche Eliminator, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Tests W/Codes - 2.5L >> Diagnostic Trouble Codes (DTC) >> Fault 1066: Rich O2 Sensor Input
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Fault 1066: Rich O2 Sensor Input

NOTE: For additional oxygen sensor information, see TITANIA OXYGEN SENSOR TESTING article.
Fig 1: Fault 1066: Circuit Diagram Rich O2 Sensor Input
G90H17803
Fig 2: Fault 1066: Flow Chart Rich O2 Sensor Input
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