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Seasonal Fuel Blends

The cause of the misfires is the temperature fuel evaporates, otherwise known as the volatility.

LTF and STF Fuel Trim Codes P0170, P0175, P0172, P0174

Understanding what parts should be replaced to get ride of these codes.

Fuel Pump Controls For Pressure and Volume

These systems are very efficient and are able to get the right amount of fuel into the cylinder so no fuel is wasted.

7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail

High-pressure fuel pumps can malfunction and/or fail due to a number of factors.

VIDEO: Understanding Fuel Pressure

The earliest effort to improve fuel-pumps was to install a series of ballast resistors. This video is sponsored by Carter.

Not Your Father’s Fuel Pump: Today’s Fuel Pumps Are Different

Understanding fuel pressure and volume is more complicated thanks to fuel injection.

Not Sure That Air Filter Needs To Be Replaced? Check The Fuel Trim

The kicker with trying to diagnose whether an air filter is affecting performance is to see if the long-term or short-term fuel trims have changed.

Fuel System Diagnostics Is All In The Fuel Trim Numbers

With lean-burn operating strategies being built into many of today’s gasoline direct-injection and gasoline compression ignition engines, it’s important to build a foundational knowledge of how fuel trims work in the real world.

The Next Evolution Of Fuel Injection

You may soon see a vehicle that has both direct fuel injection and port fuel injection. It could be a Toyota, Ford or other make.

Toyota D-4S: Port Fuel Or Direct Fuel Injection? Why Not Both?

You may soon see a Toyota vehicle that has both direct fuel injection and port fuel injection.