The removal and installation of the EGRinjector unit pump is the same as the non-EGRengine; however, the EGRinjector unit pump must be programmed to coordinate with the DDEC-ECU (formerly PLD-MR).
When replacing and before installing a new EPA04 EGRunit pump, the unit pump identification code number must be programmed into the DDEC-ECU (PLD-MR). Perform the following procedures to insert this code into the unit pump:
Note: On the top surface of each EGRunit pump, there is a unit pump identification code number. This is the number that is programmed into the DDEC-ECU (formerly PLD-MR) to coordinate the operation of the unit pumps. See Figure 44234 .
1. Injector Unit Pump
2. Injector Unit Pump Identification Number
Injector Unit Pump Identification Number