toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Fuel System - Fuel Injector Cleaning Procedure|Page 1241 > < Fuel System - Fuel Injector Cleaning Procedure|Page 1239
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Fuel Injector: Testing and Inspection

CAUTION:Keep injector clear of sparks during the test.

Lines At Fuel Filter

Inspect Injector Operation

- Disconnect the fuel hose from the fuel filter outlet.
- Connect the  union and hose to the fuel filter outlet.

HINT: Use the vehicle's fuel filter.

Line Connection

- Remove the fuel pressure regulator.
- Connect the fuel return hose and hose to the pressure regulator with union, new gaskets and union bolt.

Injector Connection

- Connect union and hose to the injector, and hold the injector and union with clamp.
- Put the injector into a graduated cylinder.

HINT: Install a suitable vinyl tube on the injector to prevent gasoline from splashing out.

- Reconnect the battery negative (-) cable.
- Turn the ignition switch ON.

NOTICE: Do not start the engine.

Fuel System - Fuel Injector Cleaning Procedure|Page 1241 > < Fuel System - Fuel Injector Cleaning Procedure|Page 1239