换这个另件试试 (二、三千刀不如头款换车了)

AutoZone，大概率＄300来刀搞定：wastegate actuator 

这个玩意：

参阅：

https://www.google.com/search?q=2014+buick+encore+p0299+code&client=safari&ei=VL9OY7-_PL-v5NoPg8qNiA4&oq=2014+Buick+encore+p0299+code&gs_lcp=ChNtb2JpbGUtZ3dzLXdpei1zZXJwEAEYADIECAAQHjIFCAAQhgMyBQgAEIYDMgUIABCGAzIFCCEQqwI6CggAEEcQ1gQQsAM6BggAEAcQHkoECEEYAFCjDViFN2CFRWgDcAB4AYABtAOIAecKkgEHMy41LjQtMZgBAKABAcgBCMABAQ&sclient=mobile-gws-wiz-serp#fpstate=ive&vld=cid:e1290b6d,vid:sG1Stxa5vpk