How do injectors become clogged?
Injectors become clogged one of two ways. First there is clogging from fuel system contamination. This means that the injector is restricted at the fuel inlet. It can happen from many different situations. You may be buying dirt at your local gas station and not realizing it. (Do you ever fill your tank while a transport truck is unloading fuel at the station?) Sometimes fuel, do to a lack of additives, may react with your fuel system components and cause deterioration. Lack of fuel in your tank promotes condensation, which can cause rust. Someone may sabotage your fuel system. Secondly, an injector can become clogged or restricted at the discharge end. This may happen do to lack of additives in the fuel that reduce carbon build. It could be from driving habits. Another reason is injector design or engine design. The end result is carbon or coking at the discharge end of the injector that restricts fuel flow or distorts the spray pattern. If injectors clog at the discharge end, it is r