Categories
Automotive

Emissions 101: A Basic Understanding Of How Catalytic Converters Operate

When servicing catalytic converters, it’s important to have a basic understanding of how they operate.

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Automotive

Evaporative Emissions Diagnostics: Start With The Basics When You Have Multiple Codes For The Same System

Recently, the shop had a 2002 Lexus SC 430 in for a check engine light with evap codes P0440 – evap malfunction; P0441 – evap incorrect purge flow; and P0446 – evap vent control malfunction.

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Automotive

VIDEO: The EVAP System: Development And Emissions Standards

Andrew Markel discusses the development of the EVAP system as emissions standards changed over time.

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Automotive

Hyundai Fuel System And Emissions Diagnostics

We recently had a 2002 Elantra GLS in the shop with assorted issues, so let’s take a look at this job since it’s a good example of some common problems we see.

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Automotive Featured

Aging Oxygen Sensors Hurt Fuel Economy, Performance And Emissions

Oxygen sensors are used to monitor the engine’s air/fuel mixture so the powertrain control module (PCM) can make adjustments that optimize fuel economy, emissions and performance.

Categories
Automotive

Failing O2 Sensors Result In Increased Emissions And Fuel Consumption

The engine computer needs to know what the fuel mixture is with a high degree of precision so it can optimize fuel economy as well as emissions. If the information received by the powertrain control module (PCM) from its sensors is not accurate, it may command too much fuel or not enough.

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Automotive

Emissions Codes: Mercedes-Benz Case Study

If the MIL is on, or even commanded on, with no current code related to emissions, it can be cause for a failure. The vehicle will still be scanned for codes and readiness flags will be checked, but an MIL on with the engine running will almost always spell “failure.”

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Automotive Featured

Hyundai Fuel System & Emissions Diagnostics

Take a look at the fuel ­injection system and driveability issues on Hyundai’s line of ­vehicles.

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News

4 & 5 Gas Emissions Testing

Use your gas analyzer as a tool cut you diagnostic time, sell more fuel injection service, and help you make more money.

Categories
Automotive News

Undercover: Managing Emissions — Diagnosing Catalytic Converter Concerns

Before a technician replaces a converter, they need to address the possible reasons for it failing in the first place.