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- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Ensure proper operation of the secondary air injection system with the Air Injection Vacuum Line. This OE MATCH vacuum line is designed to deliver vacuum pressure to air injection components, supporting accurate system control and emissions performance.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Diagram Ref No 6
What This Product Does:
- Transfers vacuum to control the air injection valve or related components
- Supports proper operation of the secondary air injection system
- Helps reduce exhaust emissions during cold starts
- Assists in improving engine efficiency and emissions compliance
- Ensures accurate system response through proper vacuum delivery
Symptoms Of Wear Or Failure:
- Check engine light (emissions or secondary air injection fault codes)
- Rough idle or unstable engine RPM
- Hissing or whistling sound from the engine bay (vacuum leak)
- Reduced engine performance
- Poor fuel economy
- Failed emissions test
- Secondary air injection system not activating properly
- Cracked, brittle, or collapsed hose material
- Loose or disconnected vacuum line
Why Replacement Matters:
- Replacing a worn air injection vacuum line is important because it ensures proper vacuum delivery to the secondary air injection system. Over time, heat and engine bay exposure can cause the line to crack, harden, or leak.
- If a vacuum leak develops, the air injection system may not function correctly, leading to check engine lights, reduced emissions performance, rough idle, and potential failure of emissions testing.
- Installing a new vacuum line restores proper system control, prevents vacuum leaks, maintains engine efficiency, and ensures the vehicle meets emissions standards.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95811077310
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Idle Control Valve Hose
Maintain smooth engine performance and stable idle speed
with this OE Match Idle Control Valve Hose. Manufactured to the original factory
specification, this provides the correct fit, flexibility and sealing performance required for the
Bosch Motronic engine management system.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Diagram ref no 38
The idle control valve hose is a vital component of the engine's intake system, providing a sealed air passage between the idle control valve and the intake system. A damaged or leaking hose can introduce unmetered air, leading to poor idle quality, reduced drivability and engine management issues.
Ideal for routine maintenance, engine restoration or resolving vacuum leaks, this OE Match hose restores factory-style performance and reliability.
What Does the Idle Control Valve Hose Do?
The idle control valve hose forms part of the engine's idle air circuit.
Its primary functions include:
Carrying metered intake air to and from the idle control valve. Allowing the engine management system to regulate idle speed accurately. Maintaining a sealed intake system to prevent vacuum leaks. Supporting smooth cold starts and stable idle operation. Helping optimise fuel mixture and engine efficiency.A correctly sealed idle control valve hose is essential for consistent idle performance and proper operation of the Bosch Motronic fuel injection system.
Why Does the Idle Control Valve Hose Fail?
Located within the engine compartment, the hose is continuously exposed to heat, oil vapour and engine vibration.
Common causes of deterioration include:
Rubber hardening through repeated heat cycles. Cracks developing with age. Splits caused by engine movement and vibration. Oil contamination softening or degrading the rubber. Loss of flexibility leading to poor sealing. Perishing after decades of service.Even small cracks can create vacuum leaks that affect engine performance and idle quality.
When Should It Be Replaced?
Replacement is recommended when:
The engine idles unevenly or stalls. Idle speed fluctuates or hunts. Vacuum leaks are detected. The hose shows signs of cracking, splitting or hardening. Carrying out an intake system overhaul. Replacing the idle control valve or other intake hoses. Performing preventative maintenance on higher-mileage vehicles.Replacing ageing intake hoses is an effective way to restore smooth idle performance and eliminate hard-to-diagnose vacuum leaks
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011058902
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Idle Control Valve Hose
Maintain smooth idle quality and reliable engine performance
with this OE Match Idle Control Valve Hose. Manufactured to the original factory
specification, this provides the correct fit, flexibility and sealing performance required for the
Bosch Motronic engine management system.
Fits:
Diagram ref no 34
This hose connects the idle control valve within the intake system, allowing accurately metered air to bypass the throttle butterfly during idle conditions. A secure, airtight connection is essential for stable engine idle, smooth cold starts and consistent throttle response.
Whether you're replacing ageing rubber hoses during routine servicing or carrying out a complete engine restoration, this OE Match hose helps restore factory performance and reliability.
What Does the Idle Control Valve Hose Do?
The idle control valve hose is a key part of the engine's air intake and idle control system.
Its functions include:
- Carrying metered air between the idle control valve and the intake system.
- Allowing the Bosch Motronic ECU to regulate engine idle speed accurately.
- Maintaining an airtight intake tract to prevent unmetered air entering the engine.
- Supporting smooth cold starting and warm idle operation.
- Helping optimise fuel mixture, emissions and overall drivability.
A properly sealed idle control valve hose is essential for maintaining the precise air-fuel balance required for stable engine operation.
Why Does the Idle Control Valve Hose Fail?
Over time, the hose is exposed to high engine bay temperatures, oil vapours and constant engine movement, causing the rubber to deteriorate.
Common causes of failure include:
- Heat-related hardening and loss of flexibility.
- Cracks and splits caused by age.
- Oil contamination weakening the rubber compound.
- Engine vibration causing fatigue around connection points.
- Perishing after years of service.
- Vacuum leaks developing through small surface cracks.
Even minor air leaks can upset the engine management system, resulting in poor idle quality and reduced performance.
When Should It Be Replaced?
Replacement is recommended when:
- The engine idles roughly or inconsistently.
- Idle speed hunts or fluctuates.
- Vacuum leaks are detected within the intake system.
- The hose becomes cracked, brittle or soft.
- The idle control valve is being replaced.
- Carrying out a full intake or engine overhaul.
- Performing preventative maintenance on older or higher-mileage vehicles.
Replacing ageing idle control hoses helps restore correct idle operation while preventing difficult-to-diagnose vacuum leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011066500
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Fits:
Porsche 911 Carrera 3.2L 1984-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020723601
The product you are viewing cross references to these numbers