Here is the English translation of your text:

The engine improvements made a year earlier were continued when power was increased in the spring of 1989. The power increase was based on 5-hole injectors and higher injection pressure. The updated model range was marketed under the name PowerPlus.

At the same time, the models 755 and 855 equipped with a torque converter were introduced.

At the beginning of 1990, another model was added between the 655 and 705: the 655T (83 hp). The model was available with or without a torque converter.

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