Toyota RAV4 2004 Service Manual page 60

1. With the engine running or cranking, use a sound scope to check that there is normal operating
noise in proportion to the engine speed.
Fig. 57: Using Sound Scope To Check For Normal Operating Noise
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. If you have no sound scope, you can check it by feeling the injector operating vibration with your
finger.
If no sound or unusual sound is heard, check the wiring connector, injector or injection signal from the
ECM.
3. INSPECT INJECTOR RESISTANCE
a. Disconnect the injector connector.
b. Using an ohmmeter, measure the resistance between the terminals.
Resistance: 11.6 to 12.4 ohm at 20°C (68°F)
2004 Toyota RAV4
2004 ENGINE PERFORMANCE SFI - RAV4