h17: Check HEGO Sensor for Short to Ground
| Steps | _Key Off
_Breakout box installed, processor disconnected _HEGO disconnected _DVOM on 200,000 ohm scale _Measure resistance between HEGO PWR GND and HEGO Signal at the HEGO sensor connector |
| Result | Is resistance greater than 10,000 ohms? |
| Direction | YES
For engines with MAP sensors, GO to Continue For engines with VAM sensors, GO to Continue For engines with MAF sensors, remove breakout box. Reconnect HEGO sensor. Replace processor. Rerun Quick Test NO Remove breakout box. Reconnect processor. Replace HEGO sensor. 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 |   "> |