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.
Fuel Pressure Test
Special Tools Required
- Fuel Pressure Gauge 07408-004000B
- Fuel Pressure Gauge Attachment Set 07AAJ-S8MA150
- Relieve the fuel pressure .
- Attach the fuel pressure gauge set and the fuel pressure gauge.
- Start the engine, and let it idle,
- If the engine starts, go to step 5.
- If the engine does not start, go to step 4,
- Check to see if the fuel pump is running: Listen to the fuel filler port with the fuel fill cap removed. The fuel pump should run for 2 seconds when the ignition switch is first turned to ON (II) or engine start/stop button to select the ON mode.
- If the pump runs, go to step 5,
- If the pump does not run, do the fuel pump circuit troubleshooting .
- Read the fuel pressure gauge.
Fuel pressure should be: 390- 440 kPa (4.0- 4, 5 kgf/cm 2 , 57- 64 psi)
- If the pressure is OK, the test is complete.
- If the pressure is out of specification, replace the fuel pressure regulator; without SH-AWD , with SH-AWD and the fuel filter; without SH-AWD , with SH-AWD , then recheck the fuel pressure.
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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