code 11

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hi
i have a sportrak 1993 what has code 11
car starts up ok but runs rich if you start it up and blip the throttle it cuts out untill it has warmed up it also runs a little rough

(Switch Signal (aircond switch, idle switch, throttle position sensor)

i dont have aircond so that leaves idle switch, throttle position sensor
how do i test them to see whitch one is working or not

thankx for any help

nice forum