ENGINE (J05E)/TROUBLESHOOTING
2–312
DTC: P0191
EN01H02127030602016053
P0191: Fuel rail pressure sensor (main and sub) - out of range
INFORMATION
1.
Technical description
•
The common rail pressure is controlled by the discharge of the supply pump.
•
The supply pump discharge rate is adjusted by the SCV (suction control valve).
<Description of malfunction>
•
Abnormally low fuel pressure inside common rail is detected.
2.
DTC set condition
(1)
DTC detection condition
•
Engine speed
≥
700 r/min.
•
Fuel injection quantity
≥
10 mm
3
/st. cyl.
•
Fuel injection quantity fluctuation
≤
2.6 mm
3
/st. cyl. sec.
•
Target current value of SCV
≤
1,250 mA.
•
No supply pump-related DTC is detected.
(2)
Judgement criteria
•
(Actual common rail pressure
–
target common rail pressure)
≤
-15 MPa for 15 seconds.
3.
Reset condition
•
After restoration to normal condition and starter key "LOCK"
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: OFF
•
SVS light: OFF
•
Engine output is restricted.
•
Cruise control function is not available.
•
Idling stop system is not available.
•
Vehicle start control is not available.
$XW (PC2S)
(E1)
X85
XZG
Z70
$XV
(PCR1)
(VC1)
(E2)
(PCR2)
(VC2)
Z72
XZH
(VC2)
(PCR2)
(E2)
(VC)
(PCR1)
(E1)
(PC1S)
XG2
EBJ
EBH
EBN
EBM
EBL
EBK
15mA
15mA
2mA
2mA
15mA
15mA
Common rail
pressure sensor
Engine ECU
SHTS021270300285
