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Switches / Regulators / Sensors
By OE Match
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
OE Match intake manifold microswitch engineered as a direct-fit replacement for the original Porsche factory microswitch used on Porsche 911 engines equipped with MFI (Mechanical Fuel Injection). Located on the intake manifold, below the throttle linkage. It detects specific intake airflow/position conditions and feeds that signal to the engine management/mechanical fuel injection system.
Fits:
Porsche 911 1969 - 1973
with MFI Mechanical Fuel Injection
Diagram ref no 24
This replacement is designed to operate reliably under high heat and vibration typical of the intake manifold area. It installs directly into the intake manifold or associated linkage mounting point using factory mounting hardware - no modification needed.
This OE Match microswitch is ideal when the original microswitch has worn, failed, or exhibits intermittent electrical contact, helping restore consistent fuel metering and smooth engine response.
The intake manifold microswitch detects the position or movement of a mechanical linkage (such as throttle or airflow sensor plate) and sends a contact signal to the engine’s mechanical fuel injection system. This information helps the MFI system manage fuel delivery and idle characteristics accurately.
Microswitches in mechanical fuel injection systems wear over time, leading to poor electrical contact, intermittent signals, or failed switch actuation. A compromised switch can result in rough idle, hesitation, inconsistent throttle response, or fuel metering issues. Installing an OE Match microswitch restores the correct mechanical-to-electrical signal interface, helping maintain MFI performance and drivability.
When to replace:
• Engine exhibits rough or unstable idle with MFI system
• Throttle response feels inconsistent
• Original switch shows poor contact or intermittent operation
• During intake manifold service or MFI system overhaul
• Preventive maintenance on high-mile MFI cars
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161310600
The product you are viewing cross references to these numbers
OEMatch Switches / Regulators / Sensors — Fit, Function, Confidence
Switches, regulators and sensors control the airflow and related signals that the engine control unit uses to manage mixture, timing and emissions on Porsche models. Many owners search for genuine or OEM switches, regulators and sensors; these are direct-fit alternatives designed to match the original form, fit and function.
Available Types
- Mass air flow (MAF) sensors
- Manifold absolute pressure (MAP) sensors
- Throttle position and accelerator pedal position sensors
- Idle air control valves and throttle actuators
- Intake pressure and vacuum switches
- Fuel pressure and airflow regulators
Understanding OEMatch Switches / Regulators / Sensors
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original switches, regulators and sensors.
OE (Original Equipment) refers to parts matching original specifications for the switches, regulators and sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM switches, regulators and sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
These components monitor airflow and pressure, report conditions to the ECU and control valves or actuators that adjust fuel delivery and idle behaviour, helping maintain drivability and emissions compliance.
Benefits Include
- Accurate airflow and pressure readings to support correct fuelling
- Improved idle stability and throttle response
- Consistent ECU communication for predictable engine management
Why Switches / Regulators / Sensors Wear and Fail
- Contamination and oil or carbon buildup that fouls sensor elements
- Electrical faults from corrosion, damaged connectors or wiring
- Mechanical wear, diaphragm or valve deterioration and vacuum leaks
The Importance of Replacing with OEMatch Switches / Regulators / Sensors
Faulty or degraded intake sensors and regulators can cause poor running, higher emissions and unreliable engine response. Replacing suspect items restores accurate feedback to the control unit, helping the engine run as intended and supporting emission control strategies on Porsche models.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Prepared to align with Porsche model documentation and ECU interfaces
- Available in common OE-equivalent types to address typical failure modes
