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DTC P0192, P0193 FRP SENSOR
EC-997
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0192, P0193 FRP SENSOR PFP:16638
Description EBS0119D
The fuel rail pressure (FRP) sensor is placed to the fuel rail. It measures the fuel pressure in the fuel rail. The
sensor sends voltage signal to the ECM. As the pressure increases, the voltage rises.
The ECM controls the fuel pressure in the fuel rail by the inlet throttling device. The ECM uses the signal from
fuel rail pressure sensor as a feedback signal.
CONSULT-II Reference Value in Data Monitor Mode EBS0119E
Specification data are reference values.
ECM Terminals and Reference Value EBS0119F
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis Logic EBS0119G
MONITOR CONDITION SPECIFICATOIN
ACT CR PRESS
● Engine: After warming up
● Air conditioner switch: OFF
● Shift lever: Neutral position
● No-load
Idle 20 - 30 MPa
2,000 rpm 45 - 55 MPa
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
48
49
Y/R
R
Fuel rail pressure sensor
[Engine is running]
● Warm-up condition
● Idle speed
1.7 - 2.0V
[Engine is running]
● Warm-up condition
● Engine speed is 2,000 rpm
2.0 - 2.3V
63 W
Fuel rail pressure sensor
power supply
[Ignition switch ON] Approximately 5.3V
67 —
Sensor ground
(Sensors shield circuit)
[Ignition switch ON] Approximately 0.3V
68 B
Fuel rail pressure sensor
ground
[Ignition switch ON] Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0192
Fuel rail pressure sensor
circuit low input
An excessively low voltage from the sensor is
sent to ECM.
● Harness or connectors
(The sensor circuit is open or
shorted.)
● Fuel rail temperature sensor
P0193
Fuel rail temperature sen-
sor circuit high input
An excessively high voltage from the sensor is
sent to ECM.
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