View ALL GMC Safari Parts
If your GMC Safari failed the emissions test due to high NOX, the EGR Valve is most likely the issue. If your GMC is running rough or has poor fuel mileage, replace the Safari EGR Valve and gasket.
Do not buy the cheap no name remanufactured or rebuilt GMC Safari electronic control units, as in our experience most of these ecu’s don’t even work right out of the box. We also carry programmable GMC Safari control units from AEM that allows you to custom program your GMC Safari ignition and fuel system.
Replace your faulty GMC Safari Mass Air Flow Sensor with a Genuine or OE Bosch Unit to keep your GMC running like new.
The GMC Safari 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 GMC Safari diagnosics codes for proper replacement of the O2 Sensor.