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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 103 (ENGINE CONTROLS - BASIC DIAGNOSTIC PROCEDURES)FUEL SYSTEMFUEL PRESSUREES300 & RX300
2004 Toyota Matrix XR, FWD, Standard

Es300 & RX300

2004 Toyota Matrix XR, FWD, StandardSECTION Es300 & RX300
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure battery is fully charged. Release fuel pressure. See FUEL PRESSURE RELEASE . Disconnect negative battery cable.
  2. Purchase a No. 1 fuel pipe Part No. (23801-20150) from parts department. No. 1 fuel pipe fits between fuel rails and fuel inlet pipe. See Fig 1. Remove fuel pipe connector from end of NEW No. 1 fuel pipe. See Fig 4.
  3. Remove fuel pipe clamp from No. 1 fuel pipe at fuel inlet pipe. See Fig 1. Ensure area around No. 1 fuel pipe and fuel inlet pipe is clean.
    4. CAUTION: Use care when disconnecting No. 1 fuel pipe from fuel inlet pipe, as some residual fuel pressure may still exist in fuel system.
  4. Depress both sides of retainer and pull No. 1 fuel pipe with disconnect fitting from fuel inlet pipe. See Fig 2.
  5. Install Adapter (SST 09268-41250), hose and fuel pressure gauge from Fuel Pressure Gauge Set (SST 09268-41250) with fuel pipe connector between No. 1 fuel pipe and fuel inlet pipe. See Fig 3. Ensure hose, No. 1 fuel pipe and fuel pipe connector are properly connected.
  6. Install negative battery cable. Connect scan tool to Data Link Connector (DLC) No. 3, located under left side of instrument panel. Turn ignition on. DO NOT start engine.
  7. Turn scan tool on. Select ACTIVE TEST MODE on scan tool. Using scan tool manufacturer's instructions, activate fuel pump and note fuel pressure. Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm2 ).
    NOTE: Fuel pump may also be activated by connecting battery voltage to specified terminals on fuel pump. See Figure.
  8. If fuel pressure is within specification, go to next step. If fuel pressure exceeds specification, replace fuel pressure regulator mounted on fuel pump in fuel tank. See FUEL SYSTEM in REMOVAL & INSTALLATION - EXCEPT GX470 article. If fuel pressure is less than specified, check for leaking fuel hoses or connections, restricted fuel filter, defective fuel pump or defective fuel pressure regulator.
  9. Remove scan tool from DLC No. 3. Start engine and note fuel pressure with engine idling. Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm2 ). Shut engine off and note fuel pressure. Fuel pressure should remain at least 21 psi (1.5 kg/cm2 ) for a minimum of 5 minutes. If fuel pressure is within specification and holds as specified, go to next step. If fuel pressure is not within specification or does not hold as specified, check for defective fuel pump, fuel injector or fuel pressure regulator.
  10. Release fuel pressure. See FUEL PRESSURE RELEASE . Disconnect negative battery cable. Remove adapter, hose, fuel pressure gauge and fuel pipe connector.
  11. Install No. 1 fuel pipe on fuel inlet pipe. Pull on No. 1 fuel pipe to ensure fuel pipe is properly locked on fuel inlet pipe. Reinstall fuel pipe clamp until "click" sound is heard. Pull upward on fuel pipe clamp to ensure fuel pipe clamp is securely locked on fuel inlet pipe. Install negative battery cable. Check for fuel leaks by using scan tool to energize fuel pump.
Fig 1: Locating No. 1 Fuel Pipe, Fuel Pipe Clamp & Fuel Inlet Pipe
G99J50566Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.