View ALL Isuzu Hombre Parts
If your Isuzu Hombre failed the emissions test due to high NOX, the EGR Valve is most likely the issue. If your Isuzu is running rough or has poor fuel mileage, replace the Hombre EGR Valve and gasket.
The Isuzu Hombre Oxygen sensor is a critical part of the emmision control system and should be replaced as soon as it fails. Make sure to check the Isuzu Hombre diagnosics codes for proper replacement of the O2 Sensor.