Whistling noise
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Check the write up section for a how to on replacing the filter for the SAI.
It is a emissions device, it pumps fresh air into the exhaust to speed up the catalytic converters reaching optimum operating temp.
It works like a black smiths bellows on a fire.
It only comes on when the engine temp is below "X" degree's, thats why its at random and it only runs for 30 sec.
It is a emissions device, it pumps fresh air into the exhaust to speed up the catalytic converters reaching optimum operating temp.
It works like a black smiths bellows on a fire.
It only comes on when the engine temp is below "X" degree's, thats why its at random and it only runs for 30 sec.