2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 164Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 164

500 EFI FUEL SYSTEM 6Set the air gap of the new sensor to the specified distance away from the ring gearTorque the retaining
1, inserting it with twisting motion to properly seat the grommetVerify that the connector centerline is aligned with the
throttle body centerline4Install the retaining bracketNOTE: Do not allow the retaining bracket to contact the MAP bodyTorque
the retaining screw to specification MANIFOLD AIR PRESSURE SENSOR (MAP) Operation Overview Mounted on the throttle body intake,
the manifold air pressure sensor (MAP) measures air passing and provides the ECU with the manifold pressure during engine
operationThis allows the ECU to adjust the fueling according to actual engine load as well as identify which stroke is the
intake strokeThe MAP sensor also provides the ECU with the ability to compensate for high altitude operation without any
recalibrationDuring initial start-up, the ECU is in "waste sparkwaste fuel" mode until the MAP sensor sends negative pressure