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626 & 626 Turbo

  1. Use Digital Code Tester (49 B018 9A0) to trouble shoot and detect fault(s) in sensors, wiring, or connections. Tester may also be used to locate short circuits between each sensor/control circuit. A fault is indicated by a code number and buzzer.
  2. A Green light on tester indicates operation of oxygen sensor. A lean air/fuel mixture is indicated when light is off. A rich air/fuel mixture is indicated when light is on. Some tests require the use of a volt/ohmmeter.
Fig 1: 626 & 626 Turbo Computer Control System Component Locations
G61471Courtesy of MAZDA MOTORS CORP.
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