As the name suggests, oxygen sensors in a car’s exhaust system sniff for oxygen, the presence of which indicates incomplete combustion and unchecked pollution. This can trigger the check engine light.

Wideband O2 sensors play a pivotal role in the realm of automotive tuning, providing precise measurements of the air-fuel ...

AIR, fuel and spark are the three ingredients for a gasoline engine to produce power. Other than an occasional change of spark plugs and plug wires, most newer vehicle ignition systems will operate ...

Last month, we kicked this series off by showing you how to save some money by diagnosing a bad MAP sensor rather than just chucking cash at new parts that may or may not fix a specific problem. This ...

A few weeks ago, I visited a plant in Anderson, S.C., run by Robert Bosch Corporation, which builds oxygen sensors for automotive engine management systems. If you're thinking that a tour of a factory ...

We may receive a commission on purchases made from links. Modern cars are designed to be more efficient and eco-friendly than ever. Automakers build vehicles with a wealth of advanced features to not ...

Dear Doctor: I have a 2004 Honda CR-V with only 25,000 miles. The engine light is on and the scan codes show a P0134/P0135 sensor. I get about 24 miles per gallon in local driving. I’ve been quoted ...

Hello. I've had an ongoing problem with my 2008 Corvette for over a year. I have reoccurring fault codes of P0171 and P0174, fuel trim lean on bank one and two. I have had the car to four shops and ...