h23: Service Code 42/92: Fuel Control Always Rich: Check HEGO Signal for Short to Power
| Steps | _Key Off, wait 10 seconds
_Disconnect the appropriate HEGO sensor for Code 42/92 _DVOM on 20 volt scale _Key On, Engine Off _Measure voltage between HEGO Signal and PWR GND at the HEGO vehicle harness connector |
| Result | Is voltage less than .5 volts? |
| Direction | YES
GO to Continue NO Reconnect HEGO sensor. Service HEGO circuit short to power. Rerun Quick Test |
| Component | Heated Exhaust Gas Oxygen Sensor |
| Description | The HEGO sensor supplies the EEC with a signal that indicates a rich or lean condition during engine operation. |
| Location | Threaded into the turbo outlet elbow |
| Wire Colors | Dark Green with Purple stripe
Grey with Yellow stripe Black with Light Green stripe |
| Image |   "> |