Flashing check engine light at first start up in a 02 a4 1.8t

Asked by Jul 18, 2017 at 12:58 PM about the Audi A4 Avant

Question type: Maintenance & Repair

I have a 02 a4 1.8t when I go to start it in the morning my
check engine light flashes for about 30 seconds then goes
away..there is a deep sounding shuttering and I can smell
the exhaust... I have replaced the coils and finding vacuum
leaks as well...after I let it warm up it drives fine and no
more blinking light if I start it up the rest of the day...

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