Stuttering during warmup goes away after refuelling | FerrariChat
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Stuttering during warmup goes away after refuelling

Discussion in 'California(Portofino)/Roma(Amalfi)' started by c928jon, Jul 2, 2025.

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  1. c928jon

    c928jon Rookie

    May 25, 2010
    43
    #1 c928jon, Jul 2, 2025
    Hi

    My 2013 Cali 30 has a very light misfire (hesitation, stutter) which presents mostly during warmup. It's been intermittent and no fault codes are showing, reading individual cylinder misfire counts shows it to be random with no cylinder showing more than the others. Only occurs on light throttle goes fine in fun mode.

    I've done all the usual stuff, smoke testing, borescope plugs changed and new mafs.

    I've now noticed that the misfire clears immediately after refuelling.

    Anyone got any ideas of anything to look at on eval system etc?
     

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