2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 287Get this manual
FUEL INJECTION SYSTEM Fault code No14
Symptom Intake air pressure sensor: hose system malfunction (clogged or detached hose)Intake air pressure sensor Check or maintenance job Check the intake air pressure sensor hose condition Repair or replace the sensor hose Check and repair the connection Replace it if there is malfunction Check the coupler for any pins that may be pulled out Check the locking condition of the coupler If there is malfunction, repair it and connect the coupler securely Execute the diagnostic mode(Code No.D03) Replace if defectiveRefer to "CHECKING THE INTAKE AIR PRESSURE SENSOR"Reinstatement method Starting the engine and operating it at idle