Anyone notice a gurgle and hesitation after starting their car just before the idle drops? Mine sort of gurgles, seems to miss a beat, and then drop the revs fine. I'm just curious if that is normal...
Lol...I actually only enjoy hearing my car's exhaust when it cold-starts...feel so pumped to drive during this short, golden time...then become crestfallen and dissappointed when idle drops lol...
Yup. It’s the normal cold start tune. The bypass valve opens in cold start and basically creates a vacuum leak. That gurgle is the bypass valve closing and the ECU compensating for the vacuum changes.
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Hyundai Elantra GT
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