4 Bar MAP Sensor

The Hondata 4 Bar MAP Sensor is designed to overcome the limitations of the stock MAP sensor in boosted Honda and Acura B-series engines. Factory sensors are only accurate up to approximately 10-11 psi, which can lead to the ECU making inaccurate assumptions about manifold pressure when boost levels are increased. This can result in risky tuning conditions and compromised performance. This upgraded sensor enables your engine management system to accurately read manifold pressure from vacuum up to 4 bar, which equates to about 58 psi or 400 kPa. This expanded range provides your tuner with the critical data needed to precisely adjust fuel delivery and ignition timing, ensuring optimal performance and engine safety. The sensor is a direct, plug-and-play replacement for the factory B-series MAP sensor, meaning no cutting, splicing, or harness modifications are necessary for installation. Once installed, the Hondata 4 Bar MAP Sensor works seamlessly with compatible engine management software, such as the Hondata S300. This integration allows for more accurate boost monitoring, leading to safer air/fuel ratios, better overall drivability, and more consistent power gains, especially in applications with turbochargers or superchargers. The sensor is specifically recommended for B16, B18, and B20 engines that are approaching or exceeding the stock MAP sensor's capabilities. While not necessary for low-boost setups within factory limits, it becomes a mandatory component for enthusiasts seeking to push higher boost pressures. Accurate boost measurement is fundamental for effective tuning, and this sensor provides a straightforward solution.