The air-fuel mixture in the engine cylinder of your Nissan 300zx is being delivered by the fuel injectors. However, due to the heat environment and extraordinary duty demands, problems and failures in fuel injectors cannot be avoided. Since they are mechanical and electrical parts, failure of these components may cause many problems that will greatly affect your car's overall performance. That is why it's important that you know what to watch out for when your car is having fuel injector problems. Let's take a look at the common problems encountered with a Nissan 300zx fuel injector and determine what causes these problems:
Foreign particles in your Nissan 300zx 's fuel tanks or fuel rails will cause your injector filters to clog. These foreign particles are usually rust that tend to build up within the injector filter or fuel filter which results to a reduced fuel flow. Smaller rust particles that pass through the injector filter may also end up altering the spray pattern and fuel flow. This could result to poor fuel economy as the clogged and dirty injector might end up spraying more fuel than required. This problem is very common for those vehicles that lack routine maintenance and those that have been unattended for a long period of time.
This problem may be caused by the overheating of the injector after a cooling system failure. Other causes of this problem include failure in the ignition system, incorrect timing, and improper handling when the component was installed. Sometimes, however, a leaking body or mechanical joint in the injector body may also be caused by defective manufacturing and testing as well as poor handling in the storage or shipping period.
An injector pintle that is not sitting on the orifice perfectly may cause troubles in starting the car. Aside from that, it may also end up damaging the oxygen sensors. This problem is usually encountered when the fuel additives are "baked" on the pintle or the orifice. Other causes include weak injector return spring and rust or corrosion inside the injector body.