Cat Instructions: C4.4 1204E 1204F
- Gut or Bypass Filters
- Unplug and block the EGR (If Removing the EGR you need to fabricate a coolant bypass)
- Unplug all sensors and valves after the turbocharger
- Unplug DEF Pump or disable power to the DCU on Tier 4 Final Machines (If unplugging the DCU creates a flashing or visible light on the monitor, reconnect it and only disable power to the DEF Pump)