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 ...

and get a special O2 sensor socket from the auto parts store (some loan them out for free) and remove the old sensor from the exhaust bung. If the sensor won't budge, try more penetrating oil or ...

the O2 sensor (also called an “oxygen sensor” or “lambda sensor”) detects the level of oxygen in your engine’s exhaust flow. This level is reported to the ECU, which uses the data to ...