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Discussion Starter · #1 ·
Past week or so my S3, (1983) has been idling at about 1,400 rpm's.
I am being lazy of course by asking this instead of researching, but hey maybe someone else has the same question.
How do I adjust idle speed on a Bosch motor? ....Also, could it be caused by a vacuum leak and what is the most likely culprit
btw, it has about 46,000 miles if thats important.

....and just as an aside, I noticed for the first time that the pin the tach needle and the speedo needle rest on is at 500 rpm's and 5 mph respectively. I guess us Italians don't believe in going zero.
 
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