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Injector Leak Test (1.9L)

  1. Disconnect negative battery terminal. Remove air intake tube and resonator. Install Fuel Gauge Bar Kit (SA9127E) to fuel pressure test port. Bleed system pressure through bleed hose.
  2. Disconnect fuel pressure regulator vacuum hose. Remove fuel lines from bracket, leaving fuel supply lines attached to fuel rail assembly and connectors. Disconnect and plug fuel return line from fuel rail.
  3. Remove fuel rail assembly retaining bolts. Pull fuel rail back far enough that injector nozzles are visible but still in intake ports. Secure fuel rail to intake manifold with wire.
  4. Wipe off any fuel or debris from fuel injector tips. Place a clean, White towel directly under fuel injectors, with towel lightly touching each fuel injector tip to easily spot a leaky injector.
  5. Reconnect negative battery terminal. Ensure battery is fully charged. Cycle ignition on and off several times. DO NOT start engine. Observe fuel injector tips for 5 minutes. Fuel rail pressure should be about 46 psi (3.23 kg/cm2 ) with fuel rail return line plugged. Run test at least twice. Replace any leaky fuel injector.
  6. Bleed fuel pressure through bleed hose and remove fuel pressure gauge. Reinstall fuel rail, fuel return line and pressure regulator vacuum hose. Lubricate injector "O" rings and male end of steel line with clean engine oil prior to installation. Start engine and check for fuel leaks.
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