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International Automotive Technicians Network
Re: 2013 Scion Frs/ Subaru Brz Misfire And Knock
Posted to Technical Discussion Forum on 1/13/2023 4 Replies

Have you put a vacuum gauge on it hot at idle with nothing on. It should be steady like rock steady if its got a mid lope not a vibrating needle this can be caused by issues other than internal mechanical issues make sure its at 800 RPMS or lower. If its got a... Login to read more.

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