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Because the port fuel injection sprays the fuel right onto the back of each intake valve. This means each cylinder is getting the exact same amount of fuel as the rest which helps with fuel efficiency and the amount of power created. Whereas the TBI (throttle body injection) has only one or two large fuel injectors spraying down through the throttle plate and into the intake manifold. Then the fuel just kinda gets sucked into each cylinder and usually goes for the cylinder that is creating the most vacuum.
What else can I help you with?
What is the difference between a carburetor and throttle body?
A throttle body is fuel injected, A carburetor is not, Fuel injection responds better then a carb. and you have less problems with it. There is no comparison .
What is a Chevy tbi?
tbi is Chevy's abbreviation for Throttle Body Injection. In this type of fuel injection system fuel is squirted into the throttle body above the manifold.
In a fuel injection motor does the throttle body have coolant in it?
No
Does the 1989 ram have fuel injection on the 318?
Yes, throttle body injection.
What are the major differences between Throttle body fuel injection port fuel injection systems?
Throttle body injection has one injector located in the throttle body that supplies fuel to the intake manifold. This fuel flows to all cylinders just like it does on a vehicle with a carburetor. Port injection uses tubes with poppet valves from a central injector to spray fuel at each intake port rather than the central throttle body.
Does 1995 Chevy Silverado have fuel injection?
Yes it does. It has TBI / Throttle body injection, Fuel system.
Is a 89 Jeep Wrangler fuel injection?
Sort of, you see the 89 Jeeps had Throttle body injection. This differs from actual fuel injection because instead of injecting into the intake prior to the valve, it injects fuel into the throttle body through just one injector instead of multiple injectors. Better than a carburetor, but not quite as good as injection as far as fuel economy is concerned.
Which engine is better EFI or MPFI?
EFI is electronic fuel injectionMPFI is multi port fuel injection.MPFI is a form of EFI so there is no real answer.There is also TBI, throttle body injection.EFI is electronic fuel injectionMPFI is multi port fuel injection.MPFI is a form of EFI so there is no real answer.There is also TBI, throttle body injection.
Is a 1989 GMC Sierra have a fuel injection?
Yes it does. It has throttle body injection. Jim
What kind of fuel injection does a 1991 Chevrolet caprice have?
TBI or Throttle Body Injection
What are the types of gasoline engine fuel system?
Carburetor, mechanical fuel injection, throttle body electronic fuel injection, ported electronic fuel injection,
Does a 1989 Chevy Caprice have a fuel injection system?
Yes it is a TBI / Throttle Body Injection. Fuel injected.
