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: Test
- Fuel Pressure - Relieve
- Fuel Pressure - Test
L4 engine V6 engine
NOTE: If you were referred to this procedure from a troubleshooting procedure, test the fuel pressure under the same conditions the malfunction occurred (engine speed, load, throttle position, etc.). 1. Disconnect the quick-connect fitting and attach the fuel pressure gauge set. Check for leaks with the gauge set attached.
2. Start the engine, and let it idle.
- If the engine starts, go to step 3 and read the fuel pressure gauge.
- If the pump does not run and any DTCs are stored, do the DTC troubleshooting - Refer to: DTC Troubleshooting Index .
- If the pump does not run and no DTCs are stored, do the fuel pump circuit troubleshooting .
3. Read the fuel pressure gauge. The pressure should be:
- If the pressure is OK, the test is complete.
- If the pressure is out of specification, replace the fuel pressure regulator and the fuel filter, then recheck the fuel pressure - Refer to: Fuel Tank Unit Disassembly and Reassembly (Without SH-AWD) or Fuel Tank Unit Disassembly and Reassembly (With SH-AWD) .
Model Fuel Pressure L4 engine 390 - 440 kPa (3.98 - 4.49 kgf/cm 2, 56.6 - 63.8 psi) V6 engine 410 - 460 kPa (4.18 - 4.69 kgf/cm 2, 59.5 - 66.7 psi)
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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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