Audi Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Ron and I will be helping you today.Stand by for a moment while I prepare your answer.
That is an EVAP system leak for emission controls. You need to locate the leak with a smoke machine. Most shops have these and some parts stores loan them out too. It a fuel vapor leak.
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Sure is possible, so is a bad gas cap actually, but this special test will show it for sure.
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You can also test the purge and vent valves with your scan tool too. They may work, but they can also leak.
Thanks again and let me know if you have any more questions.
Yep, thank you too.