Toyota Tundra Service Manual > Emission Control System: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT FUEL CUT-OFF OPERATION (a) Start and warm up the engine. (b) Open the throttle valve and keep the engine speed at 3000 rpm. (c) Use a sound scope to check for injector operating noise. (d) Check that when the accelerator pedal is released, injector operatio ...
