3 Bar GM MAP Sensor

Overview

The Haltech 3 Bar GM MAP Sensor delivers precise manifold pressure readings up to 29 PSI absolute, making it essential for boosted applications and high-performance naturally aspirated builds. Complete with GM-style connector and pins, this sensor integrates seamlessly with Haltech ECUs to provide the accurate load data your tune demands.

Technical Specifications

• Part Number: HT-010104
• Pressure Range: 0-3 Bar (0-29 PSI) absolute
• Connector Type: GM 3-pin weatherpack
• Output: 0.5-4.5V analogue signal
• Thread: 1/4" NPT
• Accuracy: ±1% full scale

Why You Need This

MAP sensor accuracy is critical for proper fuel and ignition mapping, especially in boosted applications where load calculations directly impact performance and engine safety. The standard 1-bar sensors fitted to most factory setups simply cannot read boost pressure, leaving your Haltech ECU blind to actual engine load. This 3-bar sensor solves that limitation, reading from full vacuum through to 29 PSI of boost pressure with exceptional accuracy.

We see this sensor specified across diverse builds — from LS swap projects running moderate boost to highly tuned RB26 and 2JZ engines pushing serious power. The GM connector standard makes it a popular choice for American V8 swaps, while the robust construction and proven reliability have made it equally at home on Japanese turbocharged builds. Without accurate MAP readings, your tune becomes guesswork, leading to poor drivability, reduced power, or worse — engine damage from incorrect fuel delivery under load.

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. The analogue voltage output integrates directly with any Haltech ECU's analogue voltage inputs. Suitable for speed-density tuning strategies and boost control applications.

What's in the Box

• Haltech 3 Bar GM MAP Sensor
• GM 3-pin weatherpack connector
• Connector pins and seals
• Installation documentation

Complete Your Build

Most customers completing a boosted engine setup also add our HT-020400 Boost Control Solenoid for precise wastegate control and the HT-010200 Air Temperature Sensor for complete density correction. Both items are held in UK stock alongside this MAP sensor, ensuring your complete installation can proceed without delays. Our technical team can advise on sensor placement and integration with your specific Haltech ECU during your pre-sales consultation.