SmartMAP Model SM-300-xxx Installation Instructions

Honda/Acura turbo and supercharger kits and prevents the engine computer (ECU) from … Using the electrical service manual for your vehicle, locate the MAP

This document is available as an electronic file in Adobe Acrobat (pdf) format with color images from www.zublin.com. This document may be freely copied and distributed provided that it is done so in its entirety. Any change, modification or editing is strictly prohibited without the written permission of Zublin Engineering.2

What is the SmartMAP.?
The SmartMAP. model SS-300 replaces the check valve and restrictor assembly used by most Honda/Acura turbo and supercharger kits and prevents the engine computer (ECU) from shutting down the engine when the manifold pressure is above atmospheric (boost).

How does the SmartMAP. work?
The SmartMAP. connects inline with the stock (OEM) manifold absolute pressure (MAP) sensor and limits the MAP voltage that is applied to the ECU. The limit (clamp) voltage value is preset and can not be adjusted.

The stock Honda/Acura NSX MAP sensor has an output range of about 0.5V at high vacuum to about 2.7V at atmospheric pressure (wide open throttle for normally aspirated NSX’s). With a turbo or supercharger installed, the manifold pressure will increase above atmospheric, and the MAP sensor voltage will rise above 2.7V. At some voltage above 2.7V, the NSX ECU will assume that there is a problem with the sensor and shut off the engine, since under normal conditions (without the turbo/SC), the MAP output will never exceed about 2.7V. The SmartMAP model SM-300-275 prevents the ECU from shutting…

http://www.zublin.com/smartmap/900028.pdf