It doesn't get carbon like inside an engine, you clean it by using an additive with your gas or gas with something like techron, also change your fuel filter regularly. You can clean your throttle body which does get carbon and is easy to do, that will also improve throttle response and idle quality. If you suspect a clog and can narrow it down to the injector in question, you can remove that one, clean and reinstall. They each also have their own filter.
All gasoline and diesel engines produce combustion by-products and fuel degradation products that form deposits in the fuel and air metering devices of your vehicle. These are the throttle body, fuel injectors, valves and ports and also in the combustion chambers. These deposits are various forms of carbon mixed with hydrocarbons (fuel and oil types). To "decarbon" the fuel injection system is to use solvent or detergents to remove these deposits and restore proper flow pattern (fogging of fuel) and flow volume. Each cylinder needs to receive the same flow of fuel and air for proper combustion from each cylinder. Thus, full intake system cleaning is important as well. Mark Hischier - Director of Technology, Wynn's
If you cannot get gas to the fuel injection system, you may have a clog. You can have the system looked at and flushed out and take it from there.
Carburetor, mechanical fuel injection, throttle body electronic fuel injection, ported electronic fuel injection,
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Carburetors and Fuel Injection... also direct and indirect fuel injection.
Sequential fuel injection is a type of ported fuel injection, yes.
Yes it does. It has TBI / Throttle body injection, Fuel system.
M.P.F.I. Multi Point Fuel Injection. This is a fuel injection system for gasoline engine.
Fuel injection systems do not need to "bled." However, if Questioner is actually trying to ask, "Should I relieve pressure in a fuel injection system before performing fuel system maintenance?" then the anwer is yes.
Yes it is a TBI / Throttle Body Injection. Fuel injected.
Throttle body fuel injection.
Electric fuel pumps