Hi all, shop took three hours to troubleshoot and found that the brand new VEMO idle air control valve was faulty. They smoke tested and found some minor vacuum leaks but the IAC was the problem. I didn't get the whole story about how they fixed the honking noise, will clarify tomorrow.



Fool me once, shame on you VEMO! Not buying their Chinese crap again.

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2003 3.0 5MT Topasblau
Purchased in 2016 and sold in 2024
2012 35d Platingrau