New Bosal Catalog Covers Import Exhaust and Catalytic Converters
Bosal’s new full-line import exhaust products catalog covers the company’s complete line of one-piece, direct-fit replacement import exhaust systems, mufflers, catalytic converters, pipes and accessories. More than 2,800 import makes and models, from Acura to Volvo, are featured along with complete application data, ordering information and illustrations.
Oxygen Sensors: Pulse Measurement
Watching an oxygen sensor output on an oscilloscope is like watching a sporting event on television. You get to see the action, but can do nothing about it as it happens. Sometimes you miss the action and want an instant replay. It was a bad call. You saw the interference. If the referee didn’t see
Tech Tip: Oxygen Sensors Help Maximize Performance
Computerized engine control systems do an amazing job of keeping engines in good tune, minimizing emissions and maximizing performance and fuel economy. To keep everything humming at peak efficiency, the computer needs good inputs from all of its sensors. Key among these are the oxygen (O2) sensors.
When Should You Replace an Oxygen Sensor?
Is there a mileage or time requirement for oxygen sensor replacement? Simple answer: No. Oxygen sensors were first used for fuel trim and emissions in the late 1970s and into the mid 1990s. A single sensor was installed into the exhaust stream to modify fuel delivery and maintain catalytic converter efficiency. Beginning January 1, 1996,
Tech Tip: Catalytic Converters Play an Important Role in the Emissions-Compliant Engine
The design and function of catalytic converters has changed dramatically since their introduction in 1975. The first "two-way" catalytic converters were oxidizing-only designs that combined hydrocarbon (HC) and carbon monoxide (CO) with oxygen to form water vapor (H2O) and carbon dioxide (CO2). Oxidizing converters were originally manufactured in pellet bed or monolithic "honeycomb" styles. Currently, the monolithic style has proven to be the most durable.
Diagnostic Solutions: Catalytic Converters
The design and function of catalytic converters has changed dramatically since their introduction in 1975. The first “two-way” catalytic converters were oxidizing-only designs that combined hydrocarbon (HC) and carbon monoxide (CO) with oxygen to form water vapor (H2O) and carbon dioxide (CO2). Oxidizing converters were originally manufactured in pellet bed or monolithic “honeycomb” styles. Currently,
Viewpoint: Cat Burglars and the Converter Cartel
How many catalytic converters can a battery-powered reciprocating saw cut from a dealer’s lot before the battery runs out? The answer is 18, according to news reports. In one night, 18 converters were removed at a Mentor, OH, Mitsubishi dealership. Other dealerships have been hit, with an average of 15 converters cut loose per night.
Diagnostic Solutions: Oxygen Sensor Diagnostics
Once considered leading-edge technology, today’s oxygen sensor has become a commonplace service item on modern vehicles. Popularly introduced in the 1970s, the Lambda or, as it’s more popularly known, the oxygen sensor, rapidly became standard equipment as it’s a vital component of closed-loop or feedback fuel control technology. By using a voltage input from the
Codes & Converters
It is a moral dilemma that many shops encounter on a regular basis. It starts when a good customer comes in with the engine light a blaze. Running your usual diagnostics, you encounter a catalytic converter efficiency code, slow to responded oxygen sensor or some proprietary fuel trim code. Other than the light, the customer
Making Sense out of Sensors
Sure, you may be familiar with some basic sensor operation. But as an automotive technician, you may not really understand all of the ins and outs of many common sensors. Do you really understand how they work, how the PCM views them and the possible scan tool and DVOM results when things go wrong? If
Tech Tip: Updated Routing of Volvo O2 Sensor Wiring
New routing has been developed for oxygen sensor wiring on 1997-’98 Volvo 850 models, S70/V70/C70, to prevent contamination from reaching the probe’s reference air. If one oxygen sensor is replaced, the new adapter wiring must be installed for both sensors.
DENSO Introduces Oxygen Sensor Training for Service Technicians
DENSO Sales California, Inc. has introduced an oxygen sensor training and promotion kit designed especially for professional service technicians.