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Air Mass/Flow Sensors
By OE Match
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Fits:
Porsche 911 3.2L 1984 - 1989
Porsche 964 1990 - 1994
Diagram ref no 1
The air mass / flow sensor measures the volume or flow of air entering the engine intake system. This information is used by the engine control system to calculate the correct fuel delivery, helping maintain smooth running, throttle response, fuel economy, and emissions performance.
Functions
• Measures incoming intake air flow
• Sends air flow information to the engine management system
• Supports correct fuel mixture calculation
• Helps maintain smooth idle and throttle response
• Supports reliable engine performance and drivability
• Replaces faulty, worn, contaminated, or failed original air flow sensors
• OE Match replacement for intake and fuel injection system repair.
Why Replace This Part?
Air mass / flow sensors can fail or become inaccurate due to age, contamination, electrical faults, worn internal components, intake leaks, or long-term use. A faulty sensor may cause rough idle, hesitation, poor throttle response, flat spots, increased fuel consumption, emissions faults, difficult starting, or poor running. Replacing the sensor helps restore accurate intake air measurement and correct engine management operation.
When to Replace This Part
• The engine has rough idle, hesitation, or poor throttle response
• Air flow sensor fault codes or mixture faults are present
• Fuel consumption has increased noticeably
• The engine runs too rich or too lean
• Starting or warm-running issues are present
• The sensor is contaminated, damaged, or electrically faulty
• The intake or fuel injection system is being serviced or repaired
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
930606123X
The product you are viewing cross references to these numbers
OEMatch Air Mass/Flow Sensors — Fit, Function, Confidence
Air mass and airflow sensors measure the volume and density of intake air and provide the engine control unit with data to set fuel delivery. OEMatch supplies replacement air mass/flow sensors for Porsche models, chosen for model compatibility to help restore accurate air measurement and reliable running.
Available Types
- Hot-wire mass air flow sensors
- Integrated air mass sensors with intake air temperature sensing
- Replacement modules compatible with common Porsche ECU connectors
Understanding OEMatch Air Mass/Flow Sensors
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original air mass/flow sensors. OE (Original Equipment) refers to parts matching original specifications for the air mass/flow sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM air mass/flow sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Air mass sensors detect incoming airflow and density and send this information to the ECU so it can calculate the correct air–fuel mixture; accurate measurement supports smooth running across load and temperature ranges.
Benefits Include
- Restored throttle response and smoother acceleration
- Improved fuel metering for more consistent running
- Reduced risk of drivability issues linked to incorrect air readings
Why Air Mass/Flow Sensors Wear and Fail
- Contamination from dirt, oil vapour or filter residue coating sensing elements
- Electrical faults, corrosion or damaged wiring and connectors
- Heat-related degradation of sensor electronics over time
- Air leaks downstream of the sensor causing incorrect readings
The Importance of Replacing with OEMatch Air Mass/Flow Sensors
Replacing a faulty air mass sensor restores accurate airflow measurement, which helps maintain proper fuel delivery and engine response. Timely replacement can prevent secondary faults and reduce the risk of prolonged poor running that may affect other engine systems. Select parts that match connector type and mounting to ensure straightforward fitting.
Advantages
- Direct-fit replacements made to original-spec dimensions and tolerances
- Electrical and connector compatibility for common Porsche models
- A practical supply option to support maintenance and repairs
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified. If you are unsure about wiring or sensor calibration, seek professional installation.
