Smog Testing/EVAP | FerrariChat

Smog Testing/EVAP

Discussion in 'Technical Q&A' started by Lumcam, Jul 20, 2019.

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  1. Lumcam

    Lumcam Rookie

    Dec 15, 2014
    7
    #1 Lumcam, Jul 20, 2019
    Need Help!! I have a 99 360 and I am trying to get emission testing done. I have driven the car 200 miles and have done the drive cycle 4 times without success. I had the EVAP light come in as ready and then a few minutes later, it was not ready. This has happened several times already. What can be the cause!? TIA
     
  2. mello

    mello F1 Veteran
    Silver Subscribed

    Jul 12, 2013
    5,041
    CA Bay Area
    Full Name:
    Steve
    #2 mello, Jul 20, 2019
    Make sure gas cap is tight. If that doesn't fix the problem, then do a smoke test of the EVAP system.
     
  3. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,238
    Frederick, Maryland
    Full Name:
    Brian Brown
    #3 Motob, Jul 20, 2019
    If the gas cap is good/tight, then a smoke test will reveal the source of the leakage. The roll-over valves and fuel pumps are both sources of potential leaks.
     

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