Celica Liftback L4-107.5 1762cc 1.8L DOHC (7A-FE) (1995)
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Oxygen Sensor: Component Tests and General Diagnostics
Main Oxygen Sensor
OXYGEN SENSOR (FEEDBACK) INSPECTION
1. ALLOW THE ENGINE TO WARM UP TO NORMAL OPERATING TEMPERATURE.
2. INSPECT FEEDBACK VOLTAGE.
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Connect the positive (+) tester probe of a voltmeter to terminal VF1 of the data link connector (DLC1), and negative (-) tester probe to
terminal E1 of DLC1.
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Perform the test as described in the following image.
