250 PSI “TI” Fuel/Oil/Wastegate Pressure Sensor Thread: 1/8 NPT

Precision Signal Acquisition: 250 PSI “TI” Pressure Sensor

For engines utilizing sophisticated standalone ECU integration, the quality of pressure data is non-negotiable. The 250 PSI “TI” Pressure Sensor is a high-resolution instrument designed to monitor critical fluid and gas pressures. Featuring a standard 1/8 NPT thread, this sensor is the definitive choice for monitoring fuel rail pressure, oil galleries, and wastegate control signals in LS-swap, 2JZ, and RB26 racing builds. The “TI” designation indicates a media-isolated sensing element that provides superior linearity and faster response times than standard automotive sensors, foundational for maintaining detonation protection.

Engineering Principles: Media-Isolated Sensing Logic

The sensor utilizes an advanced micro-machined silicon sensing element isolated from the measurement medium by a high-durability internal diaphragm. This Analogue-to-Digital interface ensures that the ECU receives a clean 0-5V signal that is immune to the corrosive effects of performance fuels like E85 or methanol. The 250 PSI range provides the resolution needed for precise fuel map calibration, allowing the tuner to monitor fuel pressure relative to manifold pressure (MAP) to ensure the injectors are operating at their specified flow rate. This deterministic feedback is vital for closed-loop boost control systems that require absolute manifold pressure data to manage wastegate solenoid duty cycles.

Operational Benefits: Remote Mounting for Sensor Survival

A mandatory Note for all Haltech “TI” sensors is that they must not be mounted directly into the fuel rail or engine block. To survive the intense mechanical vibrations of a performance engine, they must be remote-mounted using a flexible hose (such as HT-039103). This isolation protects the delicate internal circuitry, preventing signal noise and hardware failure. In a standalone ECU integration, this ensures that the data logged is a true representation of the fluid state, allowing for the implementation of accurate ECU Trouble Codes and safety strategies that protect the engine from low oil pressure or fuel pressure drops under high load.

Installation and Harness Integration

This 250 PSI sensor is a universal performance upgrade and includes the matching plug and pins and a -4 AN adaptor for professional harness integration. During installation, the use of a high-quality thread sealant on the 1/8 NPT port is essential to ensure absolute pressure integrity. The sensor is compatible with all Haltech Elite and Nexus series ECUs and can be easily configured via any available AVI channel. Every sensor is individually electronically tested before packaging to ensure it meets its calibrated accuracy specification. This component is the professional choice for builders who prioritize data fidelity and system longevity in their custom LS-swap or turbocharged track projects.

Technical Specifications Table

Summary & Includes

The 250 PSI “TI” Pressure Sensor is the definitive tool for high-resolution fluid telemetry. Includes: 1 x 250 PSI Sensor, Matching Plug/Pins, and a -4 AN Adaptor. Note: Remote mounting is mandatory to ensure sensor survival in high-vibration engine bay environments.