< Back to TunerCodeSA Index
MAP Sensor Installation

The MAP sensor is the heart of the Speed Density conversion and is relatively simple to install on a Nissan engine. It is important to select the appropriate MAP sensor that will accommodate the amount of boost pressure you are planning to run.

Here is a list of the more common MAP sensors and their pressure limits:

The MAP sensor should be installed on an available vacuum source on the intake manifold. The vacuum hose from the intake manifold to the MAP sensor should be as short as reasonably possible and preferably less than 12”.

The AEM map sensors have threaded ends on them and can be installed directly into the intake manifold after it has been drilled/tapped to accept the sensor.


MAP SENSOR WIRING

A MAP sensor has 3 wires (GROUND, +5v source, and Signal).

The recommended method to wire in the MAP sensor is to use the existing MAF sensor wiring for the GROUND and SIGNAL wires and then tap into the TPS 5v source for the MAP sensor 5v source.

!!YOU CANNOT USE THE MAF SENSOR 12v SOURCE WIRE TO POWER THE MAP SENSOR!!


Another method of wiring the MAP sensor is to use the NEMU ADC breakout box for the 5v SOURCE wires.

RED - Switched 12v (ECCS Relay Output (ECU pins 38 or 47)
BLK - Chassis GROUND
PNK - 5v Output to MAP SENSOR 5v SOURCE
YLW - 0-5v INPUT from MAP SENSOR SIGNAL


< Back to TunerCodeSA Index