The fuel pressure regulator may be small, but it plays a big role. Learn what it does for your engine and how a failing one can affect performance.

There's an old saying in engine tuning that when adjusting the mixture of your engine you can be too rich a bunch of times, but only too lean once. With that in mind, determining the air-fuel ratio ...

Anyone who has gone to school to learn how to repair engines of all types, such as myself, will have learned the fundamentals of how they work. It's crucial for troubleshooting and diagnosing engine ...

Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

The 1.5-litre petrol engine is also designed to run on the Atkinson Cycle. The combustion cycle of such an engine allows for improved fuel efficiency, lower emissions but with a slight compromise in ...