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  1. 11-04-2015 04:59 PM #1
    Grusvag
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    Question PO442 and PO455 codes

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    Any suggestions as to what might be triggering a couple EVAP Emission Control System codes?

    PO442 is "EVAP Emission Control System (Small Leak) Leak Detected"
    PO455 is "EVAP Emission Control System Gross Leak Detected"

    A few days ago I also had the "Loose Gas Cap" light come on briefly.
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  2. 11-04-2015 05:57 PM #2
    Sanjman
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    Quote Originally Posted by Grusvag View Post
    Any suggestions as to what might be triggering a couple EVAP Emission Control System codes?

    PO442 is "EVAP Emission Control System (Small Leak) Leak Detected"
    PO455 is "EVAP Emission Control System Gross Leak Detected"

    A few days ago I also had the "Loose Gas Cap" light come on briefly.
    Did you even search before creating this thread???

    Gas cap???????????
    N80 valve?????
    Broken hose?

    Also use a zero instead of an "O" when searching its its actually a zero
    The *NEW* B7 FAQ/New Member Guide v2 - A MUST READ

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  3. 11-04-2015 06:14 PM #3
    Okedokey
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    Check that your breather hoses are connected correctly.
    A4 B7 2.0T | HPFP upgrade + FMIC | BSR Stage II + exhaust + HFC | 3.0TFSI Throt. Body | RS4 fuel contr., PRV + S3 inj., G247 + DW300c | GFB DV+| 034 RSB + all arms and mounts | S4 brakes | B12 Bilstein suspension + H&R springs | RNS-E + Polk Audio PA D5000.5 - 4 x DB6502 + DB840DVC sub + Pioneer 10" sub | LEDs throughout | 19" Audi 2015 RS4 rims

    My respray thread
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  4. 11-04-2015 07:13 PM #4
    Grusvag
    Grusvag is offline
    Established Member Two Rings
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    My Garage
    1989 Saab 900 SPG, 1988 Saab 900 Turbo Conv
    Location
    Philadelphia area

    Thanks.
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