Today:Early fog in the far southwest clears quickly. Most areas stay dry with sunshine and variable cloud, though northern and northeastern regions may see isolated showers. Light winds overall, ...

We earn commissions from purchases you make using links in our articles. Learn more. If your car experiences poor fuel economy, lacks power, feels sluggish, idles rough, or has an illuminated check ...

This article was researched using 4 sources. See our methodology and corrections policy. As a vital component of a vehicle’s emissions control system, oxygen sensors play a crucial role in engine ...

With the Check Engine Light on, you know your vehicle needs some diagnostic work and repairs. If your professional scanner picks up the P2271 code, you know to look at the oxygen sensor, but how can ...

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 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 ...

Increasing evidence indicates that reactive oxygen species (ROS), consisting of superoxide, hydrogen peroxide, and multiple others, do not only cause oxidative stress, but rather may function as ...

2015-05-08 Partial withdrawal of direct final rule. Partial Withdrawal of Technical Amendments Related to: Tier 3 Motor Vehicle Fuel and Quality Assurance Plan Provisions 2015-02-19 Direct final rule.

The AMP-activated protein kinase (AMPK) system acts as a sensor of cellular energy status that is conserved in all eukaryotic cells. It is activated by increases in the cellular AMP:ATP ratio caused ...