Toyota_Yaris_1.4_D4D_2002_Turbodiesel___55.2KWKW_Bosch_0281011649_Bosch__369105_EE16.Stage1.bin
A catalog guide to the Stage 1 engine firmware for a 2002 Toyota Yaris 1.4 D-4D with Bosch controller 0281011649.
The file Toyota_Yaris_1.4_D4D_2002_Turbodiesel___55.2KWKW_Bosch_0281011649_Bosch__369105_EE16.Stage1.bin is identified as a Stage 1 engine calibration for a 2002 Toyota Yaris 1.4 D-4D turbodiesel. Its Bosch identifier, 0281011649, belongs to a diesel engine control unit. The ECU manages fuel injection and other engine-control functions that influence power delivery, fuel consumption and emissions.
What the Stage 1 label means
Stage1 identifies this file as a modified tuning variant rather than a stock calibration. In diesel tuning, a Stage 1 calibration typically adjusts engine-management maps to change performance while retaining the standard hardware. The filename does not establish the specific maps changed or the resulting power and torque.
The catalog describes the engine as a 1.4 D-4D rated at 55.2 kW. That figure is part of the vehicle description, not a verified output for this modified file. The repeated KWKW is part of the filename.
Controller and calibration identifiers
The Bosch part number helps identify the engine controller associated with the file. The additional 369105 and EE16 labels distinguish this catalog record, but the filename alone does not explain their precise technical meaning.
In operation, the engine ECU uses sensor information to regulate diesel injection and coordinate engine behavior under changing loads. A calibration change can alter how the engine responds to the accelerator, but the Stage 1 label alone does not establish how this particular file will drive or whether it suits another Yaris or Bosch ECU variant.