Oxygen Sensors Give NASCAR Teans New Control of Night Racing with Changing Air Density as Johnson Wins 200th for Hendrick
Jimmie Johnson and No. 48 out-dueled a charging Denny Hamlin and Tony Stewart for the checkered flag at Darlington Raceway’s grueling Bojangles’ Southern 500 Saturday night May 12, for Hendrick Motorsports’ 200th NASCAR Sprint Cup Series win.
Tech Tip: Oxygen Sensor Types, Technologies and Common Failures
The purpose of the engine management system (EMS) is to apply the correct amount of gasoline to the air entering the engine, while igniting the compressed air/fuel mixture at the right time within the cylinder. When an average Stoichiometric ratio of 14.7 lbs. of air to 1 lb. of gasoline is maintained, the EMS provides adequate oxygen for the reduction of harmful pollutants, as well as a rich enough mixture to prevent the catalyst from overheating.
Bosch Named Exclusive NASCAR Performance Partner, Oxygen Sensor Supplier for NASCAR Fuel Injected Engines
Bosch developed and introduced the automotive oxygen sensor in 1976, and as NASCAR makes the switch from carburetion to fuel injection in 2012, Bosch will be its exclusive oxygen sensor supplier.
Bosch Expertise on Oxygen Sensors for Vehicle Manufacturers Benefits the Aftermarket
Bosch has been manufacturing and supplying automotive parts and systems to vehicle manufacturers since the very beginning of the automobile. As inventor, manufacturer and supplier of many ground-breaking automotive technologies – such as the oxygen sensor which was introduced in 1976 – to original equipment manufacturers (OEMs), Bosch enjoys a unique position in being able to bring OE-level quality, fit and function to its aftermarket products.
Tech Feature: Oxygen Sensors are Key to Performance and Fuel Economy
Do you know your oxygen sensors? Oxygen sensors have been used for more than a quarter of a century, dating back to 1980 when the first computerized engine control systems appeared. 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 rich (too much fuel) or lean (not enough fuel).
Code P0420: The Dreaded Diagnostics of Catalytic Converter Replacement and Oxygen Sensors
You just pulled a P0420 from a vehicle indicating the catalyst system efficiency for one of the banks is below threshold. What is next? Could it be just the oxygen sensor? Or, could it be the catalytic converter? These articles will help you understand why the OBDII code was set and what further test must be performed to determine the root of the problem like a coolant leak, oil blow by or other problems with the engine.
DENSO Sales California Releases New 2009 Oxygen Sensor Catalog
Along with additional coverage, the DENSO 2009 catalog offers an updated 180-page illustration guide to assist with sensor selection.
Bosch 2009 Oxygen Sensor Catalog Features 99.9 Percent OE-Fit Coverage
The new, updated 2009 Bosch Premium Oxygen Sensor Catalog (# 221139) includes more comprehensive oxygen sensor listings providing 99.9 percent OE fit and coverage – the highest available in the aftermarket. Bosch OE-fit sensors are available for 226 million vehicles in operation (VIO), and features extensive coverage through 2008 model year applications.
Diagnostic Solutions: Rediscovering Oxygen Sensors
If you’re like me, you more often than not find a correct diagnostic direction by going back to what trainers are fond of calling “The Basics.” I capitalized “The Basics” because they are the foundation upon which all of us should be building our diagnostic strategies. The Basics were brought to mind recently when I
Oxygen Sensors Read the Amount of Unburned Oxygen in the Exhaust
The O2 sensors located in the exhaust manifolds provide the essential feedback for the fuel control loop that regulates the air/fuel mixture. On V6, V8 and V10 engines, there is one O2 sensor in each exhaust manifold. On four and straight six engines, there is usually only one O2 sensor in the exhaust manifold.