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 Function Check
- CHECK HIGH PRESSURE FUEL PUMP FUNCTION
With CONSULT
- Start engine.
- Select "FUEL PRES SEN V" in "DATA MONITOR" mode of "ENGINE" using CONSULT and check the indication as per the following conditions.
Monitor item
Condition
Indication
FUEL PRES SEN V
At idle
0.820 - 1, 140 V
Revving engine up to 4, 000 RPM quickly.
0.820 - 2, 900 V
Without CONSULT
- Start engine.
- Check the voltage between ECM terminals as per the following conditions.
ECM
Condition
Voltage
Connector
+
-
Terminal
F25
67
68
[Engine is running]
- Warm-up condition
- Idle speedNOTE: The pulse cycle changes depending on RPM at idle.
[Engine is running]
- Warm-up condition
- Engine speed: 2, 000 RPM
Is the inspection result normal?
YES
INSPECTION END
NO
Refer to Diagnosis Procedure .
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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