DENSO's Light Duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate acceleration and cruise conditions. Under heavy acceleration the oxygen sensor goes into "open loop", which basically means that the engine management computer system ignores the oxygen sensor. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio.
As the automotive industry continues to improve on their standards DENSO is keeping the pace with advancements in our engineering to meet the demands from the industry. Also as light duty fleet owners are holding on to their vehicles for longer periods, DENSO continues to make auto parts available for those critical replacement parts for all applications.
A light duty fleet vehicle oxygen sensor is constantly exposed to a barrage of harmful contaminants that can rob it of its ability to produce an efficient reading. Engine lubricants, sealants and additives, silicone, and/or oil can damage a sensors element. DENSO First Time Fit® oxygen sensors are coated with a special formulation of aluminum oxide to trap impurities outside of the ceramic element. In head-to-head testing against the leading competitors, DENSO oxygen sensors were rated two times more resistant to silicone and lead poisoning. At DENSO, we bring together everything we know as an OE supplier to provide aftermarket oxygen sensors that truly are Better By Design™.
DENSO Oxygen Sensors
Any good mechanic will tell you use the very best products you can. DENSO First Time Fit® oxygen sensors are specifically designed to meet the increasing demands of today's engines. Each of our oxygen sensors is constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO oxygen sensor.
In order for Oxygen Sensors to function properly, the sensors must adhere to OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt driveability and illuminate the malfunction indicator, resulting in costly and time-consuming repairs. DENSO First Time Fit® oxygen sensors are designed to meet those tolerances and more. The DENSO oxygen sensor catalog offers one of the most complete product lines in the industry.