VACUUUUM LEAK/CHECK

[MYBOYDAVE]

COULD ANYONE TELL ME IF THERE IS AN EASY WAY TO CHECK TO SEE IF YOU HAVE A VACUUM LEAK I HAVE A 1989 E-250 VAN 302 FUEL INJECTED MY IDLE IS HIGH AND I THINK THATS THE PROBLEM

[maples01]

There are a couple of hard plastic lines that dry and crack, usually running to cruise, AC, and heater controls, but I suspect yours being the throttle position sensor.

[MYBOYDAVE]

DO YOU THINK I SHOULD REPLACE THE THROTTLE POSOTION SENSOR FIRST .
IS THERE A WAY TO CHECK IF ITS BAD

THANKS FOR YOU HELP[

[maples01]

You can check it with a volt-meter, I can't recall the directions for it, but should be easy to find on the net in a search.