INSPECTION PROCEDURE 1. INSPECT FUEL PUMP (a) Inspect the resistance of the fuel pump. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the fuel pump. (b) Inspect the operation of the fuel pump. (1) Connect the battery's positive (+) lead to terminal 1 of the connector, and the negative (-) lead to terminal 2. Check that the fuel pump operates. NOTICE:
If the result is not as specified, replace the fuel pump. |
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 ...