Section 713 (Engine Fuel System (2AZ-FE)): Inspection

WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUEL INJECTOR ASSY

Check the injector resistance.
1. Measure the resistance between the terminals.
  Standard: 13.4 to 14.2 Ω at 20°C (68°F)
If the result is not as specified, replace the injector.

Check the injector injection.

CAUTION:

This test involves high-pressure fuel and electricity.
Take every precaution regarding safe handling of both the fuel and the electricity.
Perform this test in a safe area, and avoid any sparks or flame.
Do not smoke.

Purchase a new fuel tube and take out the fuel tube connector from its pipe.
Part No. 23801-20190

Fig 1: Identifying Fuel Tube Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Connect SST and fuel tube connector to the fuel pipe.
SST 09268-41047

CAUTION: Always read the precautions (see PRECAUTION ) before connecting the fuel tube connector (quick type).

Fig 2: Connecting SST & Fuel Tube Connector To Fuel Pipe
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Install the O-ring to the injector.
Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp).
SST 09268-41047 (09268-41110, 09268-41300)

Fig 3: Connecting SST To Injector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Put the injector into a graduated cylinder.
HINT:

Install a suitable vinyl tube onto the injector to contain the gasoline spray.
Operate the fuel pump (see ON-VEHICLE INSPECTION ).
Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.
SST 09842-30080

Fig 4: Connecting SST To Injector & Battery
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

INJECTOR INJECTION VOLUME

Injection Volume	Difference Between Each Injector
76 to 91 cm³ (4.6 to 5.5 cu in.) per 15 seconds	15 cm³ (0.9 cu in.) or less

NOTE: Always turn on and off the voltage on the battery side, not the fuel pump side.

If the result is not as specified, replace the injector.

Check the fuel leakage.
1. In the condition above, disconnect the test probes of SST (wire) from the battery and check the fuel leakage from the injector.
  Fuel drop: 1 drop or less per 12 minutes

Fig 5: Checking Fuel Leakage

INSPECT FUEL PUMP
1. Check the fuel pump resistance.
  1. Measure the resistance between the terminals.
    Standard: 0.2 to 3.0 Ω at 20°C (68°F)
  Fig 6: Measuring Resistance Between Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, replace the fuel pump assy.
2. Check fuel pump operation.
  1. Apply battery voltage to both terminals. Check that the pump operates.
  NOTE:
  - These tests must be done within 10 seconds to prevent the coil from burning out.
  - Keep fuel pump as far away from the battery as possible.
  - Always turn on and off the voltage on the battery side, not the fuel pump side.
  If the pump does not operate, replace the fuel pump assy.