Fresh air is injected into the exhaust stream by the secondary air injection system which is the vehicle emission control panel. This results in the proper combustion of exhaust gases. There are two methods that can categorize secondary injection systems and these are the inspirited air injection and the pumped air injection. Below are some of the benefits of using secondary air injection pump.
One good benefit of using secondary air injection pump is that it can reduce the hazardous substance emission during the cold starting. You can have good cold starting of your petrol engine if there is an affluent mixture. Carbon dioxide and unburned hydrocarbon are produced during the process of cold starting by the mixture. The oxygen sensor emission and the catalytic converter are not yet on their operating temperature during cold starting. Because of this, toxic chemicals are allowed to escape into the atmosphere. If you use the secondary air injection pump, then the harmful substances emitted during cold starting is minimized. A high level of oxygen is contained in the second injection pump which is injected to the exhaust gas manifold easily to the downstream of the exhaust valve. When toxic substances are oxidized by the presence of oxygen, then there will no longer be any harmful substances but the end product is carbon dioxide and water which is very safe. During the process, the secondary air injection pump produces heat. This results in the heating of the catalytic converter. This then reduces the amount of time taken by the oxygen sensor emission in the controlling of the process.
The use of secondary air injection helps to protect the environment. The reason for this is that during cold starting, the high concentration of carbon monoxide and unburned hydrocarbons are reduced. It helps decrease harmful substance emission in the atmosphere. This makes them comply with the current emission standards. Secondary air injection pumps are very useful in cleaning leftovers.
In order to ensure safety the injection pump uses a fault. The fault is seen in the form of oscillating the speed and the whistling noise produced during cold starting. An engine indicator lighting signals faults in the air injection pumps. So, the vehicle then undertakes an emergency operation when this happens to that the vehicle will turn to reduced performance.
The secondary air injection system is a maintenance free vehicle system. If there are long maintenance intervals, damage to mixture preparation, use of poor quality engine oils and fuels, etc., then it can lead to the soiling and sticking of the secondary air valves. You can easily pass the exhaust gas test as part of the roadworthiness test of your vehicle if your secondary air system works perfectly.
These are just some of the benefits of using secondary air injection pumps which can help your vehicle and the environment greatly.