ECU Wiring Tier2 Removal on Doosan DA30 Dump Truck

Here’s a summarized and step-by-step guide to remove the ECU wiring for the Doosan DA30 Dump Truck Tier 2:

Drain Coolant:

Drain the engine coolant as per the cooling system work descriptions.

Clean Rocker Covers:

Thoroughly wash the rocker covers and surrounding areas.

Remove Inlet Pipe:

Detach the inlet pipe between the turbocharger and the air cleaner.

Remove Air Line:

Disconnect the air line to the compressor located on the left-hand cable duct.

Unplug Connectors:

Unplug all connectors from the control unit.

Remove Rocker Covers:

Remove the rocker covers. For the 12-liter engine, remove the crankcase ventilation before the rocker cover on cylinder 1.

Disconnect Unit Injector Cables:

Disconnect the cables from the unit injectors. Unscrew the screws as far as possible (they cannot be fully removed).

Mark Cables:

Mark each cable with its respective cylinder number.

Remove Cable Duct:

Remove the cable duct attached to the cables. Unscrew the cable bushings in the lower rocker covers and remove the cables.

Remove Charge Air Sensor:

Remove the charge air sensor and its clamps.

Disconnect Electrically-Controlled Fan:

On engines with an electrically-controlled fan, disconnect the connector on the fan ring connected to the solenoid valve. Remove the cable clamps as well.

Remove Oil Pressure Sensor:

Remove the oil pressure sensor and its clamps.

Remove Coolant Temperature Air Sensor:

Remove the coolant temperature air sensor and its clamps.

Related Product:

Doosan Excavator Inspection Diagnostic Tool DDT SCR DPF G2 Scan DCU ECU DMS-5 Hardware + Software V2024.04 .

This guide provides a comprehensive method for removing the ECU wiring on a Doosan DA30 Dump Truck with a Tier 2 engine. Ensure to follow each step carefully to avoid any damage or issues during the process.

This Post: ECU Wiring Tier2 Removal on Doosan DA30 Dump Truck From ChinaOBD2 Official Blog
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