6 - 15 FUEL INJECTION SYSTEM FI FI Fault code No. 14 Symptom Intake air pressure sensor: hose system malfunction (clogged or detached hose). Diagnostic code No. D03 Intake air pressure sensor Order Item/components and probable cause Check or maintenance job Reinstatement method 1 Intake air pressure sensor hose • Check the intake air pressure sensor hose condition. • Repair or replace the sensor hose. Starting the engine and operating it at idle. 2 Intake air pressure sensor mal- function at intermediate electrical potential. • Check and repair the connec- tion. • Replace it if there is a malfunc- tion.
3 Connections • Intake air pressure sensor cou- pler • Main wire harness-ECU coupler • Check the coupler for any pins that may be pulled out. • Check the locking condition of the coupler. • If there is a malfunction, repair it and connect the coupler securely. 4 Defective intake air pressure sen- sor. • Execute the diagnostic mode. (Code No.D03) • Replace if defective. Refer to “CHECKING THE INTAKE AIR PRESSURE SEN- SOR”.