Quote:
Originally Posted by Fast92RS
If the car is a daily driver, then leave it be. The EGR helps lower combustion chamber temperatures. Escpecial during highway cruise. At highway cruise the Air/fuel ratio leans out to conserve fuel but in turn that creates higher temperatures which will make the engine run hotter. The EGR lowers those temps to prevent a over heat condition.
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And if I remember correctly, EGR is not working at WOT.