Hello guys I’m new to the forum but I have gathered a lot of great information from everybody on here so I have a 94 ranger 2.3 lima motor 2 Wheel Dr. and the motor seems to be idling high I can disconnect the Idle control valve and no changes the diesel screw has been messed with you can literally screwed all the way out doesn’t bring the idol down to where it needs to be all vacuum lines have been replaced every sensor except the high pressure relay for the air condition has been replaced new plugs new wires new crankshaft positioning sensor temperature sensors everything under the hood electronic has been replaced new fuel pump water pump Radiator fan clutch I have replaced the TPS three times I can not get it to the 1volt it needs to be I have not tried drilling the slots Throttlebody has been cleaned I just cannot figure it out I would appreciate your help thank you

 

Is the throttle body closing all the way properly?

What voltage are you getting at TPS?

Checked for intake leaks?

 

As far as I can tell the throttle body is closing all the way the lowest I can get the TPS sensor is 1.23 and all the intake gaskets have been redone Also have done a smoke test found no leaks one time had a little bit of smoke coming from where the TPS sensor connects on the throttlebody but that is it

 

You sure that TPS sensor is mounted correctly? Also almost sounds like butterfly in throttle body is not closing all the way which would explain why TPS(s) is showing higher voltage. Any play in the butterfly shaft in the throttle body? Butterfly dinged?

 

I believe so wires and plug are facing up As far as I know it only goes on one way it’s not adjustable