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h24: Check HEGO Sensor for Short to Ignition Run Circuit
Steps _Key Off
_HEGO disconnected
_DVOM on 200,000 ohm scale
_Measure resistance between Ignition Run circuit and HEGO Signal circuit at the HEGO sensor connector
Result Is resistance greater than 10,000 ohms?
Direction YES

GO to Continue

NO

Replace HEGO sensor. Rerun Quick Test


HEGO Information:
ComponentHeated Exhaust Gas Oxygen Sensor
DescriptionThe HEGO sensor supplies the EEC with a signal that indicates a rich or lean condition during engine operation.
LocationThreaded into the turbo outlet elbow
Wire ColorsDark Green with Purple stripe
Grey with Yellow stripe
Black with Light Green stripe
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