O2 Sensors Archives - Page 2 of 6 - Brake & Front End
Determining When An Oxygen Sensor Needs Replaced

When diagnosing any oxygen sensor, remember that outside air entering the exhaust system from an exhaust leak will obviously reduce an oxygen sensor’s indicated voltage output. It’s also important to know that oxygen sensors can become rich or lean biased due to problems like sensor contamination and faulty sensor grounds. Remember that, regardless of how well it tests, a biased sensor will not produce a stoichiometric air/fuel ratio. So, if the sensor is questionable, it should be replaced.

Diagnosing And Replacing Oxygen Sensors

An oxygen sensor test can be used to assist technicians in verifying the oxygen sensor operation, but it should not be the only test used to determine if a sensor should be replaced. Most scan tools have an oxygen sensor tests function (also known as Mode $05), which allows a technician to view the data readings for the oxygen sensor(s).

Diagnosing A 2011 Chrysler Town & Country With Trouble Code P0152

Verify the wiring to the O2 sensors is normal. These sensors will normally switch between 2.5 volts and 3.5 volts when they are working correctly. The sensor ground will have 2.5 volts on it and this is normal for this vehicle.

Spectra Premium Launches Oxygen Sensor Promotion

Spectra Premium is launching a promotion to support its newest product category, oxygen sensors. From March 1 to April 30, customers purchasing $1,000 in oxygen sensors will receive a 15 percent discount.

Spectra Premium Introduces New Line Of O2 Sensors

They are 100 percent performance-tested to meet vehicle requirements with all accessories included for installation, the company says.

Diagnostic Solutions: No-Code Sensor Failures

Import Specialist Contributor Gary Goms takes a look at how to utilize one or more scan tool features to detect an intermittent, no-code sensor failure.

Diagnostic Solutions: Oxygen Sensor Inspection And Service

Oxygen sensors have been a part of the automotive maintenance scene since 1976, when feedback fuel controls were popularly introduced. By 1980, nearly every car and light truck was equipped with an oxygen sensor that allowed their computer-controlled fuel systems to operate in a “closed-loop,” “feedback” or “fuel control” mode.

Walker Products To Release 2013 Domestic Oxygen Sensor Catalog At AAPEX

Walker Products has announced it will release its 2013 Domestic Oxygen Sensor Catalog, to coincide with AAPEX 2012, which takes place Oct. 30 through Nov. 1 in Las Vegas.

Custom Exhaust Fabrication: Bends, Bungs and Mufflers

Custom exhaust work is one of the first modifications an owner may perform. It can help the car or truck breath better and make more power. But, often some vehicles do not have a performance system available because the vehicle is to new, rare or the owner wants something special.

Bosch Unveils New Smartphone-Friendly Packaging for Oxygen Sensors

Bosch has introduced new packaging for its line of oxygen sensors, building on the growing popularity of smartphone technology. The new packaging includes for the first time QR (Quick Response) codes that can be scanned with a smartphone for immediate product information.

The Ins and Outs of Variable Valve Timing (VVT) Systems and Their Role in Vehicle Emissions

By the early 1990s, almost all import automotive manufacturers had a successful variable valve timing (VVT) system in production. These systems offered higher performance from smaller displacement engines at higher rpm. Do you know that VVT is playing a direct role in vehicle emissions and the way gases are burned in the combustion chamber?

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.