The MAP sensor enhancer (MAPSE) is for use on older vehicles with a MAP (manifold pressure) sensor.
The purpose of the enhancer is to provide a lower voltage to the ECU than is output by the MAP sensor.
The lower voltage causes the vehicle to run lean.
The lean condition is required to see the benefits of hydrogen boosting.
No soldering or assembly required! Just hook up the 3-wire cable to your ECU and plug it into MAPSE!
MAPSE comes with two adjustment potentiometers; one for city driving, another for highway driving, and a slide switch to select between the two settings. A 10-inch cable is provided along with wiring instructions.