This car is Identified as the model N16.
The Nissan Almera is a line of automobiles that has been manufactured by the Japanese car manufacturer Nissan from 1995 to the present year. It was essentially the European export-market version of the contemporary Nissan Pulsar, the first generation, and of the Nissan Bluebird Sylphy, the second generation.
There are several fuel injectors, carb and fuel system cleaners on the market. Ask the local auto parts store and they should be able to recommend one for you.