On my 2005 Cayenne turbo I started getting a check engine. First it had system to lean (error code) and mechanic found a leak. He has triple check it and use smoke to make sure there is no other leak. He ended doing mass air flow sensor change and thought it was resolve. The car ran better but the check engine is back. Have not check what code yet but wanted to see what the community had experience or (Gatcha's)
Thanks in advance

 

It's total guesswork without the code. Any autozone will pull it for free.

 

Thanks. Was hoping that other members will put the error code and what they did to fix it. Sometimes the code is very vague. This will help other if they see the code and present them options as to what to check. Happy Fourth to all.