Can you delete the secondary air pump?
Secondary air injection exists purely for emissions purposes. It’s not even like EGR where it can cause some performance issues and deleting it can give you any sort of gain. The only reason to “delete” secondary air is if your pump failed and you don’t want to pay for a replacement.
Is a secondary air injection pump necessary?
The secondary air injection pump (also referred to as a smog pump or SAI pump) is responsible for lowering the number of carbon emissions that come out of the tailpipe of a vehicle. This is necessary since a vehicle engine is never 100% efficient in the combustion process.
What is a secondary air pump VW?
Secondary Air Injection Pump. An emissions component, that is part of the Secondary Air Injection system, which is responsible for Pumping clean Air into the vehicle’s exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe.
Can a bad secondary air pump cause a misfire?
A faulty MAF sensor will cause your secondary air pump not to switch on. this can cause a rich condition, which can cause misfires, etc…
How do I know if my secondary air pump is working?
The secondary air pump has to start audibly after a cold start of the engine. Start vehicle engine. If the power supply of the secondary air pump is fine, but the secondary air pump runs with a scraping, whistling or scratching noise or not at all, the secondary air pump is to be replaced.
What is a secondary air injection system malfunction?
In the case of a malfunction with the secondary air injection system, the car’s computer will trigger the light if the system does not detect the presence of certain levels of oxygen in the exhaust when air is being introduced by the secondary air injection system.
What does secondary air injection system mean?
Secondary air injection (commonly known as air injection) is a vehicle emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream to allow for a fuller secondary combustion of exhaust gases.
What does the air pump do STI?
What is the Air Pump? The secondary air pump is air injection system that injects air post combustion for a predetermined amount of time after the engine is started. Its only active on startup for a very short time (15-60 seconds) and is inactive after that point.