i have a bad i idle, i started by checking my tps but i don't know how to if there is or how to get the continuity across pins A and B. I know There should be continuity between the pins when the throttle is closed, and no continuity when the throttle is opened. but i don't know how to do it. I put the multimeter on dcv but it doesn't move at all where do I suppose to put it on or what else can i use to read