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Old 03-04-2020, 10:57 PM   #1
EvolutionRevolution
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Join Date: Sep 2019
Drives: SCION FRS 2016
Location: SC
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Revving at idle?

When at idle intermittently revs from about .5 - 1k..

any clues what this could be?

Car is a 2016 , about 40K, delicious stg 2 tune (although back to stock header).
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