Theory of Operation
WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Each Fuel Injector has a six digit alphanumeric correction code. The correction code is printed on the intake side of the injector and is used to identify the injector calibration. This code must be entered into the Powertrain Control Module (PCM) using a scan tool.