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.
VIDEO: The EVAP System: Development And Emissions Standards
Andrew Markel discusses the development of the EVAP system as emissions standards changed over time.
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.
Toyota To Highlight Zero-Emission Mirai At NACE | CARS
Toyota Motor Sales will bring the 2016 Toyota Mirai to NACE | CARS in Anaheim. Attendees will have an opportunity to take a ride in this hydrogen-powered vehicle and learn more about its technology.
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.
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.
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.”
Hyundai Fuel System & Emissions Diagnostics
Take a look at the fuel injection system and driveability issues on Hyundai’s line of vehicles.
Component Connection: Emission Control — O2 Sensor Diagnostics
In recent years, the design of O2 sensors has changed. The ceramic thimble-shaped element in zirconia-type O2 sensors has been replaced by a flat strip ceramic “planar-”style sensor element.
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.