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DTC P0400 EGR FUNCTION EC-875 [VG33E] C D E F G H I J K L M A EC DTC P0400 EGR FUNCTION PFP:14710 Description UBS00DJY SYSTEM DESCRIPTION This system cuts and controls vacuum applied to the EGR valve to suit engine operating conditions. This cut- ● Low engine coolant temperature ● Engine starting ● High-speed engine operation ● Engine idling ● Excessively high engine coolant temperature ● Mass air flow sensor malfunction COMPONENT DESCRIPTION The EGR valve controls the amount of exhaust gas routed to the Sensor Input Signal to ECM ECM function Actuator Camshaft position sensor Engine speed EGR control EGRC-solenoid valve Mass air flow sensor Amount of intake air Engine coolant temperature sensor Engine coolant temperature Ignition switch Start signal Throttle position sensor Throttle position SEF317U SEF783K |