humming sound
02-25-2012, 11:58 PM
#11
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Normal.
When the engine is cold, the secondary air pump introduces more air to the exhaust to dilute the gases and results in the s2000 getting qualified as a low emissions vehicle. It turns off a few minutes after; usually when the car has had enough time to warm up.
When the engine is cold, the secondary air pump introduces more air to the exhaust to dilute the gases and results in the s2000 getting qualified as a low emissions vehicle. It turns off a few minutes after; usually when the car has had enough time to warm up.
02-28-2012, 05:11 PM
#12
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I dont want to complicate things but, mine doesn't turn off couple of minutes later... i hear it all the time. It's on all the time...
Idk about when im driving on the freeway because the street sound level + soft top is too loud to tell.
And I can make the "fuel pump sound" louder by rolling the windows up or down... I guess using the battery affects this sound.
Idk about when im driving on the freeway because the street sound level + soft top is too loud to tell.
And I can make the "fuel pump sound" louder by rolling the windows up or down... I guess using the battery affects this sound.
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