An engine relies on two things to run: spark and fuel. Sure, there are a million other things to consider when speaking of engine operation and power, but regardless of the type, size, or brand of ...

Owners of 2007-09 Honda CR-V models may come into your store with the Check Engine light illuminated and one or more of the following trouble codes stored in PCM memory: P0134, P0135, P0171 and P1157.

Tuning your engine with the aid of an air/fuel meter can really help you dial in your carburetor. But what numbers should you aim for? When people talk about the air/fuel ratio of their engine, do you ...

Back in the Fox days, the most common method of tuning was to increase timing until detonation, and back it off a couple degrees. Like Fox cars, that method was crude, but a dyno wasn't on every other ...

Imagine a turbocharger trying to pressurize a carburetor with its small venturis and finicky floats and you can get some idea why electronic fuel injection opened the door to big boost, big power, big ...

A mass air flow sensor is one of the numerous tiny widgets and gewgaws that make up a modern automobile's electronic fuel injection system. In the MAF's case, it tells the car's computer how much air ...

Your engine needs a steady stream of clean air to function properly, and it's the job of the mass air flow (MAF) sensor to measure and regulate the amount of clean air entering the intake. The engine ...