Tagfuel injection

Searching for fuel injection info? Check out all the fuel injection related articles here on the NAPA Know How blog. We’ve got Know How for all!

A car parked in a driveway in front of a house covered in snow

Posted January 25, 2020 Know How

The Modern Car in Winter: How Technology Has Made Winter Driving Easier

Driving your car in winter poses several challenges, including cold and deep snow. Here are a few modern technologies that have made it a bit easier.

Posted January 22, 2020 Know How

Signs of a Clogged Fuel Filter

Fuel filters have the important job of trapping impurities, but they don’t last forever. Learn the signs of a clogged fuel filter and when to replace it.

The inside of a throttle position sensor

Posted January 8, 2020 Maintenance

What Is a Throttle Position Sensor?

What is a throttle position sensor? Learn more about what a TPS does, how to notice when it needs repair and the steps to take to install a new one.

Posted January 3, 2020 Know How

Flow Control: How Does A Fuel Pressure Regulator Work?

What is a fuel pressure regulator? Essentially, it’s a vital component of your vehicle’s engine management system. Learn why it’s so important.

Fuel injectors on a diesel engine. Many factors influence an engine's needs for power, which vary each time you get behind the wheel.

Posted December 13, 2019 Know How

How Does Direct Fuel Injection Work?

There have been different fuel delivery methods throughout time, becoming more efficient as technology progresses. So, how does direct fuel injection work?

Injectors in a GDI engine. In a GDI engine, injectors send fuel directly into the combustion chamber.

Posted November 12, 2019 Know How

Let’s Talk Gasoline Injection: What Is GDI?

When it comes to gasoline injection, do you know what GDI is or how it differs from other types of fuel injection systems? Learn more here.

Posted November 7, 2019 Know How

What Is A Fuel Pressure Regulator?

Fuel pressure regulators are a vacuum operated spring-loaded diaphragm that enables a vehicle’s fuel delivery system to maintain a constant pressure. When the vehicle is at idle the regulator is … Continue Reading What Is A Fuel Pressure Regulator?

Posted September 16, 2019 Know How

What Is An Electronic Throttle Body?

Up until the late 1980s, most cars had a fairly straightforward throttle control. You stepped on the accelerator pedal which was connected to a cable that actuated a mechanical linkage … Continue Reading What Is An Electronic Throttle Body?

Posted April 12, 20192 Comments Know How

MAP versus MAF: What’s the Difference Between These Sensors?

There are a number of designs used to accurately measure air intake to an engine. When it comes to MAP vs. MAF sensors, what’s the difference?

Posted February 14, 2019 Know How

Can You Clean an Oxygen Sensor?

An oxygen sensor is an important part of your vehicle’s emission control system. Can you clean an oxygen sensor or should you replace it?