my 2007 audi a4 rpm goes up and down (1 to 2 notches) while at stop and driving ,then few a days ago "check engine" on dash turned on ,Car engine stops cant start again,
First start by getting the vehicle scanned for any trouble codes. This would let you know what the problem is. One thing to do is to clean the Mass Air Flow Sensor with the specific spray cleaner to do this.
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