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  • 14471AA143 Subaru VLV AY-AIR BYPASS

14471AA143 Subaru VLV AY-AIR BYPASS, Price: 102.34$, Weight: 0.609kg

    • Make Number Name Availability Weight, kg Ship in, Days Price

    Subaru

    14471AA143

    VLV AY-AIR BYPASS

    		 2

    0.609

    2-3

    102.34$
     

    Originals

    Make Number Name Availability Weight, kg Processing, days Price  
    Subaru
    14471AA143 
    VLV AY-AIR BYPASS
    		2
    0.7
     Dispatch 24h
    122.81$
     

    Substitutions

    Make Number Name Availability Weight, kg Processing, days Price  
    Subaru
    14471AA140 
    VLV AY-AIR BYPASS
    		0
    0.457
    -
    142.34$
    		 Not Available
    Subaru
    14471AA141 
    VLV AY-AIR BYPASS
    		0
    0.454
    -
    142.34$
    		 Not Available
    Subaru
    14471AA142 
    VLV AY-AIR BYPASS
    		0
    0.453
    -
    142.34$
    		 Not Available

    Compatibility

    BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
    WAGON2500CC EMPI DOHC TURBOFORESTER SPORTSUSA02.200711.2007NORMAL SUSPENSION View
    BodyEngineVehicle GradeMarketModel Year FromModel Year ToSuspensionDiagram
    WAGON2500CC EMPI DOHC TURBOWRXUSA04.200506.2007NORMAL SUSPENSION View
    BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
    SEDAN2500CC EMPI DOHC TURBOSTI TYPE RAUSA01.2017FULLTIME 4WD6SP MANUAL TRANSMISSION View
    BodyEngineVehicle GradeMarketModel Year FromTrainGearboxDiagram
    ļ½¾ļ¾€ļ¾žļ¾2.0L EMPI DOHC ļ¾Šļ½²ļ¾Šļ¾Ÿļ¾œļ½°ļ¾€ļ½°ļ¾Žļ¾žS208 NBR CHALLENGE PACKJapan02.2017ļ¾Œļ¾™ļ¾€ļ½²ļ¾‘4ļ¾˜ļ¾ļ½øļ¾„ļ¾žļ½³6ļ½æļ½ø ļ¾ļ¾†ļ¾•ļ½±ļ¾™ ļ¾„ļ¾—ļ¾ļ½½ļ¾ļ¾‚ļ½¼ļ¾–ļ¾ View

    Engine Air Bypass Control Valve Assembly

    This air bypass valve is a key helper for stable idle and smooth boost transition on Subaru turbo engines. It is needed to control how extra intake air is routed around the throttle when the engine load changes, especially during cold start, deceleration, and quick throttle blips.

    How it works āš™ļø

    The valve opens and closes to manage bypass airflow under ECU command. By balancing air volume, it helps the engine keep the correct idle speed, reduces hesitation, and supports consistent turbo response. Proper sealing also prevents unmetered air leaks that can confuse fuel trim calculations.

    What happens when it fails ā—

    A sticking or leaking unit can cause rough idle, hunting RPM, stalling when stopping, weak acceleration, and higher fuel use. You may also see check engine light, boost irregularities, or whistling/air leak sounds. Long-term driving with a faulty valve may lead to lean/rich running that stresses plugs, coils, and the catalytic system.

    Compatibility āœ…

    • Wrx/Levorg
    • Impreza
    • Forester
    • Wrx