To successfully reduce an excessively high diesel engine exhaust gas temperature, you shou

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should _____.

A.reduce the engine driven fuel pump outlet pressure

B.retard the fuel injector timing to reduce power

C.increase the fuel rack setting

D.reduce the load on the engine

请帮忙给出正确答案和分析，谢谢！

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