Exhaust Archives - Page 16 of 19 - UnderhoodService
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.

Bosal Expands Direct-Fit Domestic Catalytic Converter Line

Bosal USA, Inc. has just expanded its line of domestic direct-fit catalytic converters. The converters feature precision OE-fit design and flanges to assure easy replacement and trouble free installation.

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.

Tech Tip: Faulty Catalytic Converter Can Lead to Lack of Power, Hesitation or Surge

Owners of 2000-’03 Buick Park Avenue 3.8L vehicles may complain of a lack of power, hesitation, surge and/or possible DTC P0420. This can be the result of the catalytic converter degrading and it will need to be replaced. DTC P0420 means the rear oxygen (O2) sensor has too much activity. This means it must be working and therefore the catalytic converter is bad and needs to be replaced. Be sure to perform ….

Eastern Reaches Milestone with Direct-Fit and Universal Catalytic Converter Coverage

Eastern Catalytic has dramatically increased the market coverage for its growing direct-fit and universal-fit catalytic converters programs. Eastern now offers approximately 1,300 direct-fit catalytic converter part numbers with coverage for more than 25,000 domestic and ….

Walker Extends Catalytic Converter Coverage

The Walker line of catalytic converters from Tenneco Inc. offers significantly increased coverage of OBDII and older applications, as well as vehicles registered in California, thanks to Tenneco’s aggressive investment in the development of new direct-fit converter SKUs for domestic and foreign-nameplate models ….

Tech Feature: Understanding How Wide Ratio Air/Fuel (WRAF) Sensors Work

Instead of giving a simple rich/lean indication, wide ratio air/fuel sensors measure the "actual" air/fuel ratio. A WRAF sensor can measure mixtures that range from extremely rich to extremely lean (even straight air!). This ability allows the PCM to control fuel mixtures much more precisely, to handle much leaner fuel mixtures, to reduce emissions and to improve fuel economy compared to ordinary switching O2 sensors. WRAF sensors react much faster than ordinary O2 sensors, which allows them to ….

Emissions Update: Understanding How Wide Ratio Air/Fuel (WRAF) Sensors Work

Instead of giving a simple rich/lean indication, wide ratio air/fuel sensors measure the “actual” air/fuel ratio. A WRAF sensor can measure mixtures that range from extremely rich to extremely lean (even straight air!). This ability allows the PCM to control fuel mixtures much more precisely, to handle much leaner fuel mixtures, to reduce emissions and

NGK Spark Plugs Launches New Salvage Sensor Recovery Program

NGK Spark Plugs (U.S.A.), Inc. introduces the NTK Oxygen Sensor’s Salvage Sensor Recovery Program (NTK SSRP) to all professional technicians. This program offers professional technicians an option for disposing of replaced sensors regardless of brand ….

Tech Tip: Single Fix for Multiple Nissan O2 Sensor Codes

If one of the vehicles listed in this Tech Tip comes into the shop with the "Malfunction Indicator Lamp" (MIL) "ON" and one or more of the following Diagnostic Trouble Codes (DTCs) are stored in Engine Control Module (ECM), the repair may be as simple as installing an additional ground sub-harness ….