Electronic fuel injection was a big leap forward for engine control. However, early implementations often left something to be desired. This was the case for [Rob] and his Porsche 944, which had ...

In this video, we explain every car engine sensor, detailing their functions, operations, locations, and implications of failure. We cover OBD2 error codes such as P0335, P0118, and P0131. Sensors are ...

How does a mass air flow sensor work? What is a MAF sensor? This video explains how a hot wire type mass air flow sensor helps the engine determine how much fuel to inject, by giving a proper reading ...

Last month we fielded a question about a fault code a reader had been trying to repair for more than a year. To recap, the Corvette in question, a ’96 model, had a recurring P0171 code, or “System Too ...

When the Tuned Port fuel-injection system arrived in 1985, it was asignificant improvement on the throttle-body systems that came before.Much cooler looking and with more power potential, the Tuned ...

As we all (should) know, an engine works by combusting an air/fuel mixture within metal cylinders, pushing pistons down and rotating a crankshaft which can then rotate a gearbox and, eventually, your ...

Diagnosing a Check Engine light often leads to unnecessary replacements. Discover ten specific components where cleaning ...