It is a moral dilemma that many shops encounter on a regular basis. It starts when a good customer comes in with the check engine light ablaze. Running your usual diagnostics, you encounter a ...

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 ...

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 ...

As a vital component of a vehicle’s emissions control system, oxygen sensors play a crucial role in engine performance and fuel efficiency. But what’s the typical cost to replace a failed O2 sensor?

When gas powered cars get older the catalytic converter, or converters if you have a V style engine, can lose their efficiency and set off a CEL, or check engine light. P0420 is a code for a failing ...

Alright, so that engine knocking and the car running like crap? Yeah, it was back. Even after cleaning everything (EGR, O2 Sensor, Throttle body, Intake Manifold, Exhaust manifold) last time, the ...