Sonata GL V6-3.0L (1997)
Oxygen Sensor Diagnostic Codes:
Intermittent malfunctions may be responsible for setting diagnostic codes. A vehicle with an intermittent malfunction may appear to be normal when the
customer brings the vehicle into the dealership. A malfunction must occur in two consecutive trips to illuminate the check engine light, decreasing the
possibility of false codes being set. A test drive, circuit diagnosis and "wiggle check" test may help reveal the condition that is the cause of the code.
Refer to the 1997 Engine Fault Code Diagnostic Manual, The Shop Manual and Electrical Trouble Shooting Manuals for the specific vehicle wiring and
circuit information.
Oxygen Sensor Installation Tips
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Be sure to install the oxygen sensors by applying 30 to 45 lb.ft (40.7 to 61.0 Nm) of torque as specified in the Shop Manual for the specific model.
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For simplified installation and removal of oxygen sensors, Kent-Moore Tool # J-71 89 and a 22 mm crowsfoot wrench are recommended.
Circuit Diagnosis
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Oxygen sensor heater resistance should be greater than 30 ohms at 750°F (400°C).
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Open Circuit:
