2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 116Get this manual
ENGINE CONTROL SYSTEM
MAP SENSOR OUTPUT VOLTAGE CHANGE09917-47011: Vacuum pump gauge 09930-89340: 26-pin34-pin test cord 09930-99320: Digital testerTester range: DCV (See chart for range 1Remove flywheel(See page 3-66 2Remove the three bolts and fuel hose guard3Remove bolts and MAP sensor from intake manifold
MAP sensor
4Install MAP sensor into special tool! 09917-49610: Vacuum pump adaptor
5Connect vacuum pump gauge (with hose) to MAP sensor (special tool) as shown in figure6Turn ignition switch ON7While applying negative pressure (vacuum) to MAP sensor, measure "12" terminal voltage(See page 3-48 and 3-49 for procedure