Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Inspection (Fuel Rail Pressure Sensor)
- CHECK FRP SENSOR
WITH CONSULT
- Turn ignition switch OFF.
- Reconnect harness connector disconnected.
- Start the engine.
- Select "DATA MONITOR" mode with CONSULT.
- Check that the "FUEL PRES SEN V" indication.
Monitor Item
Condition
Values/Status
FUEL PRES SEN V
Engine speed: Idle
820 - 1, 220 mV
Engine speed: Revving engine from idle to 4, 000 RPM quickly
820 - 3, 060 mV
WITHOUT CONSULT
- Turn ignition switch OFF.
- Reconnect harness connector disconnected.
- Start the engine.
- Check FRP sensor signal voltage.
+
-
Condition
Value
(Approx.)
ECM
Connector
Terminal
Connector
Terminal
F116
25
F116
13
[Engine is running]
- Warm-up condition
- Idle speed
0.82 - 1.22 V
[Engine is running]
- Warm-up condition
- Revving engine from idle to 4, 000 RPM quickly
0.82 - 3.06 V
Is the inspection result normal?
YES
INSPECTION END.
NO
Replace FRP sensor. Refer to Exploded View .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.