Rough Idle on cold start-up on Audi A4 1.8T B8.5

20

Asked by Jul 27, 2019 at 01:45 AM about the 2013 Audi A4

Question type: Maintenance & Repair

Hello, I have a 2013 Audi A4 1.8T B 8.5 (petrol). During a cold start-up the
engine rough idles and sometimes shuts off. I have to rev it up a little until its
warm. Once it warms the problem goes away. I changed spark plugs, PCV
valve, HPFP but still have this problem. Any help will be greatly appreciated.
Thanks.

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