ECU is an electronic injection system used for / » Internal Combustion Engines (I.C. Engines) solved MCQs / By admin Question: ECU is an electronic injection system used for A. calculating the appropriate injection timing B. meeting only certain operating conditions C. closing the injection valve only D. none of the above Answer» a. calculating the appropriate injection timing Note: The above multiple-choice question is for all general and Competitive Exams in India.