Your vehicle's O2 sensor plays a significant role in its performance and if it's faulty, it's not something you should ignore ...

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 ...

When the Check Engine Light comes on, it’s natural for your heart to sink just a little. With your OBDII scanner, you might find the P0430 code, but what does it mean? In this guide, I look closer at ...

For years, the conventional VAV control sequence included the reheat valve controlling directly to space temperature. More and more often, discharge air temperature (DAT) sensors are now being ...

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 ...

Why Replace A Faulty Oxygen Sensor? A faulty sensor cannot transmit accurate data to the car's computer, causing the engine to run unbalanced. An unbalanced engine either burns fuel with too much or ...

The P0137 code shows that there’s a problem with one of the oxygen sensors in your vehicle. It’s a generic OBDII code that can be read with a diagnostic scanner. In this guide, I evaluate what the ...

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 ...

The oxygen (O2) sensor is part of the fuel management system. It monitors unburned oxygen in the exhaust. The powertrain control module (PCM) uses this information to determine if the fuel mixture is ...

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 ...