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To further my first reply:
When talking about the SAI= think smog pump.
An air pump kicks on for a short period of time when you first start the car.
Some people say they an hear it kick on and turn off.
I always go with the simplest things first and work my way up the diagnostic tree.
So first find out if the pump is working or not.
If it isn't then look to fuses and relays first.
wiring issue second.
bad pump third.
If the pump is working then look for vacuum leaks in the SAI related system first.
Then issues with the related electric and vacuum operated components.
Do a search on SAI related issues here on the forum there is lots of information.
There are pictures and diagrams of the system layout.
Get familiar with the system, its purpose, and how it functions.
Understanding the system will help with correcting issues with it.
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