Throttle Switch Test
For those of you who have the late model digital instrument panel, there is a quick and easy check to see if the idle switch on the throttle is functioning.
While driving at highway speed:
Change the display to instant fuel mileage.
Lift off the throttle completely - the mileage should go to 90.0 mpg.
Step on the throttle very slightly - the mileage should drop to somewhere in the thirty - forty mpg range.
This works because one of the functions of the idle switch is to cut the fuel completely above 1200 - 1500 rpm when the throttle is at the idle stop.
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