Factory idle speed
02-14-2007, 01:06 PM
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Factory idle speed I have searched height and low and can not find what the factory idle speed should be set at on a 99 Z28 A4 at full operating temperature. If someone could help me I would be grateful. Thanks Rick
02-14-2007, 01:27 PM
#2
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Don't know if it varried a little from year to year - but before changing mine stock was 645-676 in P/N and 525-585 in gear with foot on the brake, AC off, using real time data on my Predator. Tach read in between each on the dash.
