Types of Fuel Injection

Despite the additional power, EPA fuel economy estimates for the direct injection engine are 1 MPG higher in the city (18 MPG vs. 17 MPG) and equal on the highway. Another advantage is that Cadillac's direct injection engine runs on regular 87-octane gasoline.

Why does a boat engine not reach full rpm. it only gets 4,000 when the manual indicates 4,800. it gets the same rpm on - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website.

There are numerous causes of a rich fuel mixture. A contaminated oxygen sensor, leaky injectors, and excessive fuel pressure are some common causes of richness to the mixture; Malfunction in the air injection system.The air injection system helps reduce the emission of hydrocarbons and carbon monoxide of a car.

2002). When fuel injection pressure is low, fuel particle diameters will enlarge and ignition delay period during the combustion will increase. This situation leads to inefficient combustion in the engine and causes the increase in NOx, CO emissions. When the injection pressure is increased fuel particle diameters will become small.

Increased Fuel Consumption; Poor Idle; Fuel odors inside and around the car; Hard Starting; Poor Emissions; Oil thinning, which can lead to catastrophic engine failure; Hydro lock, which can lead to catastrophic engine failure; External injector leaks is a fire hazard and can not be fixed. Injectors leaking externally due to a cracked body must be replaced.

1. Engine misfires and decrease in power, acceleration, and fuel efficiency. One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. If any of the vehicle’s fuel injectors have an issue, the air fuel ratio of the engine will be upset, which can result in performance problems.

Multi-point fuel injection, or MPFI, is a gasoline delivery system that uses four individual fuel injectors to evenly disperse gas into an engine´s combustion chambers. MPFI was developed to succeed the older single-point fuel injection systems.

1. Engine misfires and decrease in power, acceleration, and fuel efficiency. One of the most common symptoms of a potential problem with a fuel injector is engine performance issues. If any of the vehicle’s fuel injectors have an issue, the air fuel ratio of the engine will be upset, which can result in performance problems.

A sequential fuel injection is a type of multi-port fuel injection system in which each injection valve will open just before the cylinder intake valve opens. So in essence, the individual injectors work by themselves because they are fired individually.

TBI fuel injection is a type of fuel injection system where the fuel is injected into the throttle body. The throttle body fuel injection system, or TBI as referred to by GM or CFI by Ford, works using a single or pair of injectors. The throttle looks like a carburetor without the fuel bowl, the metering jets or the float.

Fuel injector issues can become apparent with many different symptoms including problems with the car starting, idling problems, a failed emissions test, generally poor car performance and an inability to reach high revolutions per minute, or RPMs.

If you're looking for Fuel Injector Cleaning in the United States, ... Problem Injectors. ... Rough engine performance; Surging and bucking under various throttle loads;