Description

The HKS Pressure Sensor Kit is an essential, high-precision hardware upgrade for GR86/BRZ owners installing turbo or supercharger systems on the FA24 engine. It solves a fundamental limitation: the factory manifold pressure (MAP) sensor is designed for a naturally aspirated engine and cannot accurately read the positive boost pressures created by forced induction. This kit provides a robust, wide-range sensor capable of measuring up to 294 kPa (3.0 kg/cm²), ensuring your ECU receives the accurate data required for safe, high-performance tuning under boost.

Product Highlights

📊 Solves a Critical Forced Induction Limitation
The stock MAP sensor saturates and becomes inaccurate at very low positive pressure. This kit replaces it with a sensor offering a wide positive pressure range up to 294 kPa (approx. 28 psi of boost), providing the ECU with the precise manifold pressure data necessary for proper fueling, ignition timing, and boost control.

⚙️ Precision Engineered for Direct Integration
Designed as a complete, vehicle-specific solution. It includes a high-quality Japanese-made pressure sensor, a dedicated mounting bracket for a secure and tidy installation, and a plug-and-play wiring harness. This ensures reliability and a clean, OEM-like fitment.

🔌 Enables Advanced Tuning & Metering
Accurate high-boost measurement is the foundation for advanced tuning. The kit also features a convenient T-connection port for a mechanical boost gauge, allowing you to easily add analog boost monitoring without compromising the electrical signal to the ECU.

✨ Maintains Factory Aesthetics
The compact design and dedicated bracket allow for installation without modification to the genuine engine cover or the HKS Dry Carbon Engine Cover. You can achieve full functionality while preserving a clean, finished engine bay appearance.

Technical Specifications

• Product Name: Pressure Sensor Kit

• Model Code: 45999-AT001

• Compatibility: Toyota GR86 / Subaru BRZ (ZN8/ZD8 with FA24 engine). Also compatible with FA20 engines (red intake manifold; black manifold requires modification).

• Sensor Type: Wide-Range Manifold Absolute Pressure (MAP) Sensor.

• Key Specification: Accurate measurement range up to 294 kPa (3.0 kg/cm², ~28 psi).

• Kit Includes: Sensor, vehicle-specific mounting bracket, wiring harness, and necessary hardware.

• Feature: Includes a boost gauge tap port.

• Installation Manual (PDF)

Performance Philosophy

• Goal: To provide the fundamental sensor hardware required for reliable and precise engine management under forced induction. The focus is on accuracy, durability, and seamless integration, forming a critical backbone for any high-horsepower turbo or supercharged build.

• Focus: A mandatory supporting modification. This is not an optional performance part; it is an essential enabling component that must be paired with appropriate ECU tuning (like the HKS F-CON iS or a custom tune) to safely realize the potential of a forced induction system.

Installation & Tuning Notes

• 🔧 Professional Installation & ECU Tuning Required
  While the physical installation is straightforward using the provided bracket and harness, this modification is ONLY for vehicles with a tuned ECU. Installing the sensor without updating the ECU’s calibration parameters will cause drivability issues and likely trigger fault codes.

• ⚠️ Mandatory ECU Parameter Update
  The ECU must be recalibrated to understand the new sensor’s voltage-to-pressure relationship. Example parameters for tuning software (e.g., EcuTek) are provided in the instructions, such as:

  • Pressure Offset: -150 → -570

  • Voltage Gradient: 250 → 727.5
    This recalibration must be performed by a professional tuner.