Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Diagnosing fuel delivery problems has become far easier for DIY ...

Especially when the junkyard is chock full of pocket-sized Toyota injectors, available for free at a reasonable price? Exactly. But how do you know if your junkyard injectors are any good? Sure, you ...

Most modern vehicles have multi-port fuel injection (MFI) with a separate fuel injector for each cylinder. This system mixes the fuel and air together right in the intake port for eachengine cylinder ...

The Commander 950 Multi-Point fuel-injection system is a speed-density system (i.e. it does not rely on a mass air flow sensor). It's intended to convert carbureted, non-computerized, small-block ...

The carbureted car and truck era phased out by the early '90s. Carbs are still in use today on a few motorcycles, lawn mowers, and other power equipment, but electronic fuel injection (EFI) is ...

Diesel engines rely on different types of fuel injection. Mechanical was used early on, but common rail became more popular ...

The key ingredient to maximizing the peak performance of a diesel engine is increasing the amount of diesel being burned. On old mechanical-injection engines, the only way to do this was to modify the ...