Can a carbuerated car have SFI? (sequential fuel injection)?

Question

My manual says my car is carbuerated, but it doesn't say much. I looked up my VIN #. It says my engine type is 2.0L SOHC "SFI" which is sequential fuel injected. I don't think this car is fuel injected, unless its an older version throttle body injected? I'm so confused.

To sum it up: Can a car be carbuerated and have a fuel injection system at the same time? By that I mean it squirts fuel into the carb and mixes with the air to help start the engine.

My vin # is: 1HGCA5620HA079127

Answer 1

Your car is not carbuerated.
TBI: Throttle Body Injection
Usually a single point injector placed before the throttle plate; looks much like a carburetor. One injector feeds all the cylinders. In some applications, two injectors may be used side by side. Usually TBI systems run low pressure (15 psi) fuel systems.

EFI: Electronic Fuel Injection
Generic name for electronically fired injectors versus continuous mechanical injection (older Bosch). This does not refer to any more specific injection set up than that as far as I know.

MPFI: Multi point Fuel Injection
Where an injector is mounted in the intake plenum pointed more or less at each cylinder's intake valve. 6 cylinders = 6 injectors. There are two firing circuits in the ECM, one for the front bank of 3 cylinders and one for the rear bank of 3 cylinders. Example: when fired, the front three injectors simultaneously spray fuel toward their respective intake valves. Fuel Pressure is approximately 45 psi. An additional injector for added fuel during cold starts is often present.

SFI: Sequential Fuel Injection
One injector per cylinder with a firing circuit for each injector individually. Results in better emissions and more power. Same fuel pressure as the MPFI.

TPI: Tuned Port Injection
Is the same system as MPFI, just for more cylinders and a fancier name.

Each basic system has one or more sub systems and that can get confusing.

Answer 2

Sorry no your 1987 Honda Accord DX is not Carbuerated !! Hondas havent been Carbuerated since the late 70's very early 80's. Its throttle body.

Gas engines meter the air and fuel that the engine uses.

A diesel engine just meters the fuel giving the engine as much air as it wants.

Answer 3

You can tell by looking at it. throttle body injection looks like a carbuerated fuel system; could be mistaken for a carb unless ya looked closely.(air cleaner on top, ect.) With SFI you should see where each injector goes into the cylinder seperately instead of getting dumped into the intake manifold like throttle body does. Or the intake manifold itself with have seperate tubes running to each cylinder and will even usally say sfi on it. It could even be EFI Your car may have been produced in both sfi and carb models; which would explain why your manual says what it says.