In the world of automotive tuning, knowledge is horsepower. Gauges, loggers, and sensors galore provide the data to advance performance, solve problems, and prevent expensive engines from experiencing ...

This article applies to the Mercedes-Benz E-Class (2002-2009). The Mercedes-Benz E-Class oxygen sensor is the main component for the emission control system. When it's not working properly, the engine ...

Maintenance is an essential part of owning a car. Whether it’s simple tasks like an oil change or bleeding your brakes, plenty of jobs are DIY-friendly and can save you the costs of taking your ...

This article applies to the Porsche 997 (2005-2012). Engine performance is all about a magical mixture known as Air:Fuel Ratio or AFR. The Porsche 997's engine control unit, or ECU, wants to manage ...

This article applies to the Chevrolet Camaro and Pontiac Firebird (1990-2002). Have you noticed that your car is running less efficient? Does it occasionally misfire? Or does the exhaust pipe smell ...