1 Bar GM MAP Sensor

Overview

The Haltech 1 Bar GM MAP Sensor delivers precise manifold pressure readings for naturally aspirated and low-boost applications up to 1 bar absolute pressure. Essential for accurate fuel and ignition mapping on NA builds, mild turbo conversions, and EFI swaps where OEM sensors lack the precision your Haltech ECU demands.

Technical Specifications

• Part Number: HT-010100
• Pressure Range: 0-1 bar absolute (0-14.7 PSI)
• Connector: GM 3-pin weatherpack (included)
• Signal Output: 0.5-4.5V linear
• Operating Temperature: -40°C to +125°C
• Thread: M10x1.0

Why You Need This

MAP sensor accuracy directly affects your engine's ability to calculate load and deliver proper fuelling. Generic aftermarket sensors often suffer from poor linearity and temperature drift, causing lean spots that kill engines or rich conditions that cost power. This GM-spec sensor uses proven automotive-grade internals with precise calibration curves that Haltech ECUs read natively — no scaling required.

Perfect for LS swap projects, RB25/26 conversions, or any naturally aspirated build where you're replacing tired OEM sensors. The 1 bar range suits engines running atmospheric pressure plus mild vacuum, making it ideal for throttle body conversions on classic engines or modern NA applications. For turbo builds exceeding 1 bar, you'll need our 2 or 3 bar variants, but this sensor excels where precise low-pressure readings matter most — like idle quality and part-throttle driveability that separates professional tunes from amateur efforts.

ECU & System Compatibility

Compatible with all Haltech Elite 550/750/1000/1500/2000/2500 ECUs and Nexus R3/R5 systems. The sensor outputs a standard 0.5-4.5V signal that requires no custom scaling — simply select "GM 1 Bar" from the sensor library and you're calibrated. Works with any Haltech ECU running MAP-based load calculation.

What's in the Box

• Haltech 1 Bar GM MAP Sensor
• Pre-wired GM 3-pin weatherpack connector
• Connector pins and seals

Complete Your Build

Most customers completing EFI conversions also add our Air Temp Sensor M14x1.5 (HT-010200) for proper density correction and the Boost Control Solenoid 3 Port (HT-020400) for future turbo upgrades. Billy's keeps these sensors in UK stock for next-day despatch, and our pre-sales team can specify the correct pressure range for your specific application — avoiding the costly mistakes of running the wrong sensor range.