Nissan Sentra B18 (2020-2025) Service Manual: Fuel Rail Pressure Sensor
Component Inspection
Component Inspection
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CHECK FUEL RAIL PRESSURE (FRP) SENSOR
With CONSULT-
Turn ignition switch OFF.
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Reconnect harness connector disconnected.
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Start engine and warm it up to normal operating temperature.
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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
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Engine: After warming up
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Selector lever: P or N position (CVT models), Neutral position (M/T models)
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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
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Engine speed: Idle
0.82 – 1.14 V
[Engine is running]
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Engine warm-up condition
-
Revving engine from idle to 4,000 rpm quickly
0.82 – 2.9 V
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Is inspection result normal?
YES >>INSPECTION END
NO >>Replace FRP sensor. Refer to Exploded View.
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Other materials:
B2231-16 Battery Voltage
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis
content)
DTC detected condition
...
Front Auxiliary Input Jacks
Diagnosis Procedure
Diagnosis Procedure
AUX JACK
CHECK AUX JACK HARNESS CONTINUITY
Ignition switch OFF.
Disconnect AV control unit connector and front
auxiliary input j ...
C1712-7a Low Tire Pressure Fr
Dtc Description
DTC Description
Note:
The Signal Tech II Tool [– (NI-50190)] can be used
to perform the following functions: Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS sensor IDs
Display tire pressure rep ...