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- 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 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 911 - 1974 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 914 - 1970 to 1976
Porsche 924 - 1980 to 1985
Porsche 944 - 1982 to 1991
Porsche 968 - 1992 to 1995
Porsche 928 - 1978 to 1995
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG0235692
The product you are viewing cross references to these numbers