Details On DTCs

DTC P0088:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Fuel pressure sensor circuit range/performance problem
Detection condition	Determination conditions	The actual fuel pressure becomes higher than the target fuel pressure by 1.2 MPa {12 kgf/cm² , 174 psi} while the fuel pressure feedback amount is maintained high.
	Preconditions	Engine speed: 500 rpm or more^1 The following DTCs are not detected: Fuel pressure sensor: P0089:00, P0192:00 and P0193:00 High pressure fuel pump: P0091:00 and P0092:00 ^1 : Standard can be verified by displaying PIDs using M-MDS
	Malfunction determination period	5 s period
	Drive cycle	1
	Self test type	CMDTC self test
	Sensor used	Fuel pressure sensor
Fail-safe function	Limits intake air amount Stops high pressure fuel pump control
Vehicle status when DTCs are output	Not applicable
Possible cause	High pressure fuel pump connector or terminals malfunction Fuel pressure sensor connector or terminals malfunction PCM connector or terminals malfunction Fuel pressure sensor malfunction Fuel injector malfunction High pressure fuel pump malfunction Relief valve (built-into high pressure fuel pump) malfunction PCM malfunction