Nissan Almera 2000 X reg. Engine management light keeps coming on? Can someone suggest a code reader to reset?

You need a scantool to erase the code/s-also has something to do with airflow-check air tubes/mass airflow senssor

When that light comes on, it is telling you that you have a sensor that is operating out of range and you need to resolve this issue. To simply reset it will accomplish nothing, because as soon as the sensor exceeds it's allowable limits again, the light will come right back on again. Have it properly diagnosed and repaired that way the light will stay out and your vehicle will operate as it was designed.
Here it is the one, Memoscan U380 scanner is a kind of auto device for reading and erasing trouble code in vehicles, sometimes called car reader. Though so small, light and handy, which is dynamic and fashionable in design, competitive in price and easy to use

Launch makes a small cod reader that is cheap and can graf some sensors . It works well