Toyota 2VZ-FE Manual page 133

EFI SYSTEM – Fuel System (Injectors)
Injectors
ON–VEHICLE INSPECTION
1. INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(a) With the engine running or cranking, use a sound scope
to check that there is normal operating noise in
proportion to engine rpm.
(b) If you have no sound scope, you can check the injector
transmission operation with your finger.
If no sound or an unusual sound is heard, check the wiring
connector, injector or injection signal from ECU.
2. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between
the terminals.
Resistance: Approx. 13.8
If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
FI–27