Air fuel ratios, emissions, and others: oxygen (O2) sensor, exhaust gas temperature sensor (EGT), nitrogen oxide sensor (NOx), knock sensor The video illustrates how each sensor communicates with the ...

Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...

The Holley 4150 has been the gold standard for performance since it was released to the aftermarket in the '60s. Seemingly everyone has one, but do you really know how to tune it? Resident carb ...

The LM7 is one of those fly-under-the-radar performance engines. We've seen tuners get four-figure horsepower ratings out of this motor, but to most drivers this is the 295-hp motor found in Chevy ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

The P0118 code means that the engine control module (ECM) has detected a voltage signal that's too high from the engine coolant temperature (ECT) sensor (below). In practical terms, the ECM believes ...

View post: Sedan vs Coupe: The Difference Is Not As Simple As It Used To Be A modified 1969 Ford Mustang Boss 429 sold for nearly $200,000 at auction. The car features a Kaase 598 engine with 1,062 ...

Modern vehicles are equipped with advanced diagnostic systems designed to alert drivers to potential issues before they become serious problems. For Mitsubishi owners, understanding these diagnostics ...

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 ...

Any gearhead worth his or her salt knows that whether it's a SOHC, DOHC, or OHV engine, the camshaft is considered the brain of a four-cycle internal combustion power plant. The camshaft's profile ...