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Old 04-02-2009, 03:04 PM   #13 (permalink)
wstar
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Quote:
Originally Posted by Neo187H View Post
Its a system designed the warm up the intake air charge in order to get the car up to operating temperature quicker for emissions testing.
Really? That doesn't make intuitive sense to me. Intake air temperature isn't going to have a big effect on engine oil/coolant temperature to begin with I don't think... but that aside, the coolant won't start flowing through the throttle bodies until after the thermostat opens, at which point the engine is already warmed up. I could be wrong, but I'm pretty sure it's there to prevent the butterfly valve (throttle plate) in the throttle body from getting stuck (frozen) into place in very cold climates.
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