Microswitch for intake manifold. Porsche 911 with MFI Mechanical Fuel Injection  ❭  90161310600

Microswitch for intake manifold.
Genuine Porsche Original Equipment (OE) intake manifold microswitch, designed specifically for Porsche 911 models equipped with Mechanical Fuel Injection (MFI). This factory-engineered switch provides a critical electrical signal within the MFI system, supporting correct fuel metering and drivability. Located on the intake manifold, below the throttle linkage.

Fits:
Porsche 911 1969 - 1973
with MFI Mechanical Fuel Injection

Diagram ref no 24

The microswitch detects mechanical movement or position within the intake manifold or throttle linkage and provides an electrical contact signal to the MFI system, helping regulate fuel delivery and idle characteristics.

With age and use, microswitches can suffer from contact wear, internal corrosion, or inconsistent actuation, leading to poor idle quality, hesitation, or incorrect fuel delivery on MFI engines. Replacing a faulty switch with a Genuine Porsche OE unit restores factory-correct switching behaviour and helps preserve the precise mechanical fuel injection characteristics that define classic MFI-equipped 911s.

When to replace:
•  Unstable or inconsistent idle on MFI engines
•  Hesitation during throttle transitions
•  Intermittent electrical contact or failed switch testing
•  During MFI system overhaul or intake servicing
•  As part of a factory-correct restoration

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90161310600

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