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Thread: My idle reading went from 13.5 to 13.1 all of a sudden?

  1. 08-22-2017 #1
    CactusG8
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    My idle reading went from 13.5 to 13.1 all of a sudden?

    I am running about E30 on the car. But it does not have an alcohol sensor. Is this the sign of oxygen sensors going bad?
    2016 Hellcat Challenger, automatic, black on black with brass monkey wheels

    10.13@ 140 DA 5000 feet
    2.75 pulley, tune, drag radials. 10 percent lower od crank pulley, 1050 ix. off road mid pipe. tune
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  2. 08-23-2017 #2
    SultanHassanMasTuning
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    log? whats your fuel trims are your O2's switching
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