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Vacuum reading at idle 97 mark viii lsc

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  • Vacuum reading at idle 97 mark viii lsc

    Hey all was wondering if anyone knows what an idle vacuum reading should be on a 97 mark viii Lsc with no mods.

    Just got my Bluetooth obd2 scanner and noticed the vacuum at idle is 26 to 27 psi and I also saw the Evap system hasn't completed it's obd2 tests.

    Thinking there's a leak in Evap system somewhere or bad Evap controller.

    Thanks for any and all help as always

    Cheers
    J
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