Exhaust After Treatment Fuel Injector (if equipped)
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
The exhaust after treatment fuel injector, also known as the low pressure diesel hydrocarbon injector is located on the passenger side frame rail. The exhaust after treatment fuel injector is used to inject fuel into the exhaust system to generate the required heat needed by the diesel oxidation catalyst to function properly.