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
- 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 .
Use the Manual With the Right Hardware
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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.
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