Porsche Throttle Body 280750007 98660511501 147156 280750014 280750007 For 911

Product Specification

Porsche Throttle Body 280750007 98660511501 147156 280750014 280750007 For  911 Carrera 911 Carrera S  Cayman Cayman S Boxster Boxster S

1. Product Introduction & Technical Principle

    This is a drive-by-wire electronic throttle body assembly engineered for Porsche high-performance engines.

The technical principle is organized as follows:

1. Drive Command: The driver presses the accelerator pedal. The ECU calculates the optimal throttle opening based on pedal signal, driving mode (e.g., Sport, Sport Chrono), and real-time engine data.

2. Motor Actuation: The ECU sends a pulse command to the precision DC motor inside the throttle body.

3. Dual-Gear Drive: The motor drives the throttle plate via a two-stage reduction gear set. This design provides higher torque for rapid and precise plate control.

4. Redundant Feedback: Two independent potentiometer-style position sensors integrated on the plate shaft continuously provide real-time feedback to the ECU. This forms a highly reliable closed-loop control system, ensuring accurate operation.

2.Vehicle Compatibility Table

This part number is specifically designed for the following Porsche models:

3. Features

• High-Performance Response: Tuned specifically for Porsche engines, delivering extremely fast throttle response.

• High-Reliability Design: Utilizes dual position sensors and wear-resistant gears, ensuring long-term stability and safety under high-temperature and high-vibration conditions.

• Precise Control: The throttle plate and motor offer high control accuracy, ensuring the optimal air-fuel ratio under all engine operating conditions.

• Integrated Structure: Combines the motor, gears, plate, and sensors into a single robust and compact unit for easier installation.

4. Purpose

• Core Function: Precisely regulates the volume of air entering the engine's intake manifold, acting as the "throat" for engine power output.

• Enables Driving Modes: Directly responds to commands from different Porsche driving modes (e.g., Normal, Sport), altering throttle response characteristics.

• Ensures Stable Idle: Works with the ECU to maintain a stable idle speed by making fine adjustments to the throttle opening.

• Improves Fuel Economy: Precise air intake control contributes to highly efficient combustion.

5. Production Process

• High-Precision Machining: The throttle body bore and plate are precision-machined to ensure smooth airflow and excellent sealing.

• Specialty Materials: Uses high-strength engineering plastics and heat-resistant metal alloys for gears and housing to withstand harsh under-hood environments.

• Automated Assembly & Calibration: Assembled in a cleanroom environment using automated equipment. Each unit undergoes end-of-line calibration of electrical characteristics and position sensors to ensure consistent performance out of the box.

6. Operating Instructions (Replacement & Adaptation)

1. Removal: Disconnect the battery, remove the intake pipe, unplug the electrical connector, and remove the mounting bolts to take out the old throttle body.

2. Installation: Install the new throttle body, ensure the gasket is intact, and reinstall all components in reverse order.

3. Critical Step - ECU Adaptation/Learn:

   • After installation, you must perform a throttle adaptation procedure using the Porsche OEM diagnostic system (e.g., PIWIS) or a compatible advanced diagnostic tool.

   • This process includes: a) Reading/clearing fault codes; b) Performing a "Throttle Valve Adaptation"; c) Possibly performing an "Idle Speed Learn".

   • This step is mandatory. Without it, the ECU cannot correctly recognize the new throttle body's parameters, leading to rough idling, poor acceleration, or warning lights.