get a factory service manual. It's pretty straight forward. you can also find it online at http://www.nicoclub.com/FSM/240sx
it has an effect if you dont change the fuel injected
Possibly the fuel pump, but replace the fuel filter first. You might want to check all of your injectors.
Look on the left side of the valve cover by the intake manifold and you will see the injectors and the rail.
To change fuel injectors on a 2002 Honda Civic unclip them from the harness. The fuel rail will need to be removed and the injectors will be able to come off.
YesYes
Your local auto parts dealer
Always towards the fuel injectors.
How do change Fuel injectors on GS300 2000
they are located under the fuel rail. you have to disconnect the connectors on top and two skrews on each injector house, and if im not mistaken 3 bolts on the fuel rail.
the fuel injectors expand when hot and will flood the system change out the fuel injectors
Follow the fuel lines from the injectors and youll find it.
I only change a fuel injector if it fails. I own and operate 8 Chevy Celebrities and have only had 3 fuel injectors, all on the same car, fail. I do not know of a set change frequency such as there is with timing belts.