Fuel Trims - very good videos | FerrariChat

Fuel Trims - very good videos

Discussion in 'Technical Q&A' started by Dave rocks, Jul 8, 2018.

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  1. Dave rocks

    Dave rocks F1 World Champ
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    Nov 23, 2012
    16,047
    Orchard Park, NY
    Full Name:
    Dave Lelonek
    #1 Dave rocks, Jul 8, 2018
    I came across some very good videos on fuel trims. Wanted to share. I think these are excellent.



     
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  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    5,686
    Central NJ
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    Dominick
    #2 flash32, Jul 8, 2018
    I have used the fuel trims to diagonis many issues with o2 sensors and maf sensors and vacuum leaks .. invaluable info

    Thank for the post

    Sent from my Moto G (4) using Tapatalk
     
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  3. Qavion

    Qavion F1 World Champ
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    Feb 20, 2015
    11,556
    Sydney
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    Ian Riddell
    #3 Qavion, Jul 8, 2018
    Hope that some Ferrari owners take into account that they may have two fuel pumps (feeding individual banks). :)

    I'm having problems understanding why a leak in the exhaust forward of the O2 sensor would cause problems. Doesn't the exhaust always have a positive pressure? Wouldn't this mean exhaust air would leak out, not atmospheric air leak in? o_O
     

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