What is a fuel injector?
A fuel injector is a device for atomizing and injecting fuel into an internal combustion engine. It's consistently under pressure.

There are 2 types of fuel injectors:
1.Diesel Fuel Injectors
Modern diesel fuel injectors are used to atomize and inject or spray diesel (which is heavier fuel than gasoline) directly into the combustion chamber of the diesel engine for compression ignition (no spark plugs).
Diesel fuel injectors require much higher injection pressure (up to 30,000 psi) than gasoline injectors as diesel is heavier than gasoline, and it takes much higher pressure to atomize the fuel.
2.Gasoline Fuel Injectors
Gasoline fuel injectors are used to inject or spray gasoline directly (GDI) or through intake manifold (multi-port) or throttle body into the combustion chamber for combustion which is ignited by spark.
The design of gasoline injectors varies by type… the newer GDI injectors use a multi holed nozzle, the multi-port and throttle body use a pointless style nozzle. Gasoline injection pressures are much lower than Diesel…3000 psi for GDI and 35 psi for Pinter style.

Leaking Fuel Injectors
This can be an extremely dangerous situation. If the fuel injectors are leaking externally, you should not drive your vehicle. While a leaking injector will cause issues like that of a dirty one, you will often be able to smell gas or diesel under the hood or even spot a leak, depending on your make and model. Externally leaking injectors pose a fire risk and need to be completely replaced.

Vehicle Fits:

For Hyundai Elantra 1.6L 2017-2020
For Hyundai Elantra GT 1.6L 2018-2020
For Hyundai Kona 1.6L 2018-2021
For Hyundai Sonata 1.6L 2018-2019
For Hyundai Veloster 1.6L 2019-2021
For Kia Forte 1.6L 2020-2023
For Kia Optima 1.6L 2019-2020
For Kia Seltos 1.6L 2021-2023
For Kia Soul 1.6L 2017-2022

Symptoms you require fuel injector replacement
Check Engine Light is illuminated;
The engine runs rough or there’s a dead miss in a cylinder;
There’s a raw fuel smell from the engine or the exhaust.

How important is replacing your fuel Injectors?
A leaking or plugged fuel injector causes the related cylinder to run rich or lean, both of which can cause long-term problems that require extensive repairs.
In addition, your car's performance will suffer and your Check Engine light will remain on until the repair is performed.

Is there a break-in period with my new fuel injectors?
Yes & No. All of our fuel injectors are ready to operate upon installation.
Starting the engine and letting it idle for a minimum of 20 minutes is the best thing to do after installing new injectors. This will push the aerated fuel out of the injector nozzle. Failure to do this may create a low/no-fuel condition, which could cause internal damage to the injectors. The new fuel injectors will perform great initially, and you will continue to see increased performance up to 1000-3000 miles as the injectors continue to break-in.

Can you upgrade fuel injectors?
Yes, a fuel injector upgrade is a great option to help add miles-per-gallon or restore lost power and torque in older or high-mileage engines. The first thing to know is "upgrading" does not mean changing the injector flow-rate. Upgrading means replacing old, worn, OEM fuel injectors with a new set of fuel injectors. This upgrade can improve the overall performance of an older engine.

*Please contact us with any questions about fitment or condition*