Fuel Injector FAQ's

The majority of injectors are high impedance. Low impedance (peak and hold) injectors have a resistance of between 2 and 4 ohms. High impedance (saturated) injectors have a resistance of between 10 and 14 ohms. Low impedance and high impedance injectors cannot be used interchangeably without modification of the injector drivers.

Due to the popularity of top-feed injectors, there are several products available in the market that are designed with the purpose of using a standard injector size. 

Our universal injector line has 3 of the most common injector heights available in many different flow rates.

A - The HDEV1700 is a drop-in fitment for many applications, which utilize the Bosch HDEV5 injector platform.  This includes the popular 2.0L, 2.3L and 3.5L Ford EcoBoost engines.  To keep up with what is new and current in the DW line up, follow our DW Facebook page, our DW news page, and sign up for the DW newsletter.

There are several variables to account for when sizing an injector for a specific horsepower figure: fuel type, number injectors, fuel system pressure, etc.  To find the best injector size for your needs, use our online fuel injector calculator.

Some of our injector lines are substantially larger flowing injectors than stock.  Slightly elevated noise is a characteristic of a larger injector and is normal.  In-line fuel pulsation dampers can often help decrease injector noise.

While it is impossible for us to evaluate all fuel system cleaners on the market, in general they are compatible with our injectors.  In our experience, fuel system cleaners perform better as preventative maintenance and do not have lasting effects if you have an existing fuel delivery issue.  Should the fuel system cleaner not remedy your problem, an injector service may be necessary.

While there is no set maintenance schedule for having injectors serviced, 3-4 years of use would be a manageable service interval.  A service can also be recommended to help diagnose fuel system issues.

O-ring kits are available for many all DW injectors.  Contact us for your particular needs.  We also have injector services available that will include new O-rings, seals, and filters along with the other benefits of the service.