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Evaporative Emission Control System (EVAP) – Function – Failure
Automotive Emission Control Systems – Must Perform One Important Job
Emission Thermactor Plugs – Needed For Small Block Ford Cylinder Heads
Catalytic Converter – Knowing The Basics And Testing
Air Injection – Secondary Air Injection System – Types – Function – Failure
(EGR) Valve – Is The Problem Your (EGR) Valve Or Is It Something Else
(PCV) System – The Most Critical Part Is The Flow Control Valve
Oxygen Sensors (O2) – They Monitor The Levels Of Fuel Mixture
Check Engine Light (CEL) – What Can Cause It To Come On
Loose Gas Cap – Evaporative Emission Control System (EVAP) Self Test
Emission Control – Pollution Control Devices That Manage Emissions
So, The clean air; limits the amount of each of these pollutants; that could be emitted from an automobile. Consequently, The manufacturers answer was; the addition of certain pollution control devices. Also, The creation of a self adjusting engine.
So, An oxygen sensor was installed in the exhaust system. Consequently, Measuring the fuel content of the exhaust stream. It then would send a signal; to a microprocessor; which would analyze the readings. As a result; To operate a fuel mixture; or air mixture device; to create the proper air/fuel ratio. So, As computer systems progressed; they were able to adjust; ignition spark timing; as well as operate the other emission controls.
The computer is also capable; of monitoring and diagnosing itself. As a result, If a fault is seen; the computer will alert you by; also, illuminating a malfunction indicator lamp. The computer will at the same time; record the fault in it’s memory. So, that a technician can at a later date; also, retrieve that fault in the form of a code. Finally, Which will help them determine the proper repair.
Catalytic Converter
Read more on our Catalytic Converter page
PCV Valve
Read more on our (PCV) Valve page
EGR Valve
Read more on our (EGR) Valve page
Evaporative Controls
Read more on our Evaporative Controls page
Air Injection
Read more on our Air Injection page
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