Air Temp Sensor - Large Thread 3/8 NPT 18TPI

Overview

Precision air temperature monitoring for serious EFI builds. This large-thread 3/8 NPT sensor delivers accurate intake air temp readings essential for proper fuel and ignition mapping, particularly critical on forced induction setups where charge temperatures directly impact performance and engine safety.

Technical Specifications

• Part Number: HT-010202
• Thread: 3/8 NPT 18TPI
• Connector: Delphi plug with pre-terminated pins
• Sensor Type: NTC thermistor
• Operating Range: -40°C to +150°C

Why You Need This

Air temperature compensation is fundamental to any serious EFI calibration, yet it's often overlooked until detonation strikes. This sensor provides your Haltech ECU with real-time intake air temperature data, allowing the ECU to automatically adjust fuel delivery and ignition timing as conditions change. On turbocharged builds like 2JZ-GTE swaps or RB26 setups, charge air temperatures can vary dramatically between cold starts and full boost runs — without accurate temperature compensation, you're either running dangerously lean when hot or wastefully rich when cold.

The large 3/8 NPT thread makes this sensor ideal for mounting in manifolds, intercooler piping, or turbo inlet pipes where you need a robust connection that won't vibrate loose. We regularly spec this sensor on LS turbo builds where it's mounted post-intercooler to monitor actual charge temperatures reaching the cylinders. The included Delphi connector ensures reliable connections that won't corrode or work loose — critical when this sensor failure could mean the difference between a safe tune and engine damage.

ECU & System Compatibility

Compatible with the full Haltech Elite and Nexus range including Elite 550/750/1000/1500/2000/2500 and Nexus R3/R5 ECUs. Connects directly to any available analogue temperature input. Our team can confirm specific wiring and calibration requirements for your ECU and application.

What's in the Box

• Haltech Air Temperature Sensor with 3/8 NPT thread
• Pre-wired Delphi connector with pins
• Installation instructions

Complete Your Build

Most customers fitting air temp sensors also add the HT-010300 Coolant Temperature Sensor for comprehensive engine monitoring and the HT-010100 GM 1 Bar MAP Sensor for load sensing. If you're fabricating a custom mounting point, consider the HT-010230 Weld Fitting M14x1.5 for a professional installation. All items held in UK stock with same-day despatch, and our technical team can advise on optimal sensor placement for your specific application during pre-sales consultation.