355 High Idle when heater is on | FerrariChat

355 High Idle when heater is on

Discussion in 'Technical Q&A' started by JeffBarber, Nov 24, 2011.

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  1. JeffBarber

    JeffBarber Karting

    Feb 6, 2011
    175
    Lascassas, TN
    Full Name:
    Jeff
    I start up my 97 355, let it warm up and all is normal. I drive around and the car comes up to full operating temp, then I come to a stop at an intersection. The car wants to idle at 2000 RPM. The heater is on and working good, I push the environment control button to shut it off and the idle drops immediately to normal range. Is this normal?
     
  2. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,742
    Not normal--wonder if you are seeing a ground<ing> problem developing.
     

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