Nissan Sentra B18 (2020-2025) Service Manual: Fuel Rail Pressure Sensor
Component Inspection
Component Inspection
-
CHECK FUEL RAIL PRESSURE (FRP) SENSOR
With CONSULT-
Turn ignition switch OFF.
-
Reconnect harness connector disconnected.
-
Start engine and warm it up to normal operating temperature.
-
Select “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT and check the indication under the following condition.
Monitor item
Condition
Indication
FUEL PRES SEN V
-
Engine: After warming up
-
Selector lever: P or N position (CVT models), Neutral position (M/T models)
-
A/C switch: OFF
-
No load
Engine speed: Idle
0.820 – 1.140 V
Revving engine from idle to 4,000 rpm quickly
0.820 – 2.900 V
-
Without CONSULT-
Turn ignition switch OFF.
-
Reconnect harness connector disconnected.
-
Start engine and warm it up to normal operating temperature.
-
Check FRP sensor signal voltage.
ECM
Condition
Voltage
Connector
+
−
Terminal
F24
44
45
[Engine is running]
-
Engine warm-up condition
-
Engine speed: Idle
0.82 – 1.14 V
[Engine is running]
-
Engine warm-up condition
-
Revving engine from idle to 4,000 rpm quickly
0.82 – 2.9 V
-
Is inspection result normal?
YES >>INSPECTION END
NO >>Replace FRP sensor. Refer to Exploded View.
-
Other materials:
Diagnosis System (intelligent Key Unit)
Consult Function (hands Free Module)
CONSULT Function
(HANDS FREE MODULE)
Intelligent Key unit
Refer to CONSULT Function
(HANDS FREE MODULE).
...
Front Brake Caliper Assembly
Exploded View
Exploded View
1.
Brake caliper body
2.
Bleeder valve
3.
...
Preparation. Preparation
Preparation
Special Service Tools
Special Service
Tools
The actual shape of the tools may differ from those
illustrated here.
Tool number
(TechMate No.)
Tool name
...