Hondata 4 Bar MAP Sensor for Honda/Acura K Series

Hondata 4 Bar MAP Sensor for Honda K-Series Engines

If you’re adding boost to your K-series, the factory MAP sensor becomes a hard limit way sooner than most people expect. The stock sensor tops out around 11 psi, which means once you go past that, your ECU is basically guessing. The Hondata 4 Bar MAP Sensor fixes that problem cleanly and correctly.

This sensor is a true plug-and-play upgrade. It bolts into the factory location, plugs into the OEM connector, and installs in under a minute. No wiring, no splicing, and no stress about damaging your harness like you risk with universal MAP sensors. If you value reliability and clean installs, this is the right way to do it.

So what does “4 bar” actually mean? A bar is a unit of pressure. A 4 bar MAP sensor can read up to about 58 psi (400 kPa) of absolute pressure. That gives your ECU accurate data well beyond what the stock sensor can handle. If you’re running a turbo or supercharger and plan to exceed ~11 psi, this sensor isn’t optional, it’s necessary!

Accurate manifold pressure data is critical for tuning. The ECU uses the MAP signal to calculate airflow, fueling, and load. With the Hondata 4 bar MAP sensor, your tuner gets reliable pressure readings at all boost levels, which means safer air/fuel ratios, smoother drivability, and more consistent power when you lean on the car.

Key Features

• 4 bar MAP sensor capable of reading up to ~58 psi (400 kPa)
• Direct plug-and-play replacement for factory Honda K-series MAP sensor
• Installs in under 60 seconds with no wiring or modification
• Required for turbocharged or supercharged setups exceeding stock sensor limits
• Provides accurate manifold pressure data for proper fueling and tuning
• OEM-style fit and finish for a clean engine bay

Compatibility

The Hondata 4 bar MAP sensor works with most OEM K-series throttle bodies and BDL throttle bodies designed for K-series engines. It is commonly used on the following vehicles and engine swaps:

• 2002–2006 Acura RSX Base
• 2002–2006 Acura RSX Type-S
• 2002–2005 Honda Civic EP3 (Si)
• 2001–2005 Honda Civic (all models with K-series swaps)
• 2005+ Honda S2000

If you’re pushing boost on a K-series and want your tune to stay accurate instead of maxing out sensors, the Hondata 4 bar MAP sensor is one of those upgrades you install once and never think about again—in the best way possible.