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]
-
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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The actual shape of the tools may differ from
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