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Here is the instruction show you guide on how to do performance check-Low temperature ATD for Detroit DDEC16 DD15 GHG17 engine.
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To run the routine:
1 Navigate to the DPF System Panel, under Service Routines. Open the drop-down window and select the Perform Performance Check – Low Temp ATD.
2 Start the service routine. The engine speed will increase to 1250 rpm for this routine.
3 Once the engine coolant temperature reaches 50°C (126°F), the engine brake will activate (100% PWM).
4 The system will continue to warm up. Once the DOC inlet temperature reaches 270°C (518°F), the HC dosing system will turn on. The HC dosing system will perform its safety check with no HC dosing. The Fuel Doser Injection Status (in yellow) will go to 100%, then back to 0% for the remainder of the routine.
5 Navigate to the SCR Service Routines Panel. The DOC Inlet, DOC Outlet, DPF Outlet, SCR Inlet (calculated value based on DPF outlet and SCR outlet on the 1-BOX) and SCR Outlet temperatures should stabilize in the mid-to-upper 375°C (700°F) range.
6 Once the temperatures stabilize (should occur within 25 to 30 minutes into the service routine), compare all temperature sensor values. They should read within 27°C (45°F) of each other. If the values are outside the 27°C (45°F) range, the temperature sensor has possibly drifted high or low.
7 The service routine will automatically stop after 30 minutes.
More repair cases for Detroit Diesel engines,please refer to:Detroit Diesel Engine Repair
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