Hello all i have a 95 22re when i start it cold it idles up and runs fine drive it for what ever amount of time and then shut it off if i start it back up within say 2-3hrs the idle is very low 290-350 and the motor bucks and misses if i let it idle like that for a while the idle will return to normal i have replaced the colant temperature switch but im leaning twords IACV/AAV truck runs fine except after warm start i dont know where to begin

 

Some of us have had this problem. Here is a post to read through. https://www.yotatech.com/forums/f116...t-issue-288051

 

The truck in this case has no fpu on top of the thermostat housing

 

Ah, should have payed closer attention to your year. I believe they stopped using those later.

 

The issue you described could also be the result of a bad fuel injector. My 90 4runner had the same symptoms, started fine when cold and if I parked and turned off/on again, i had the same rough Idle. A bad vacuum leak could cause this as well. I would recommend purchasing a fuel treatment to clean your injectors such as Seafoam or the Chevron w/Techron. Check the your vacuum lines & intake as well.

 

it starts up fine when warm no excessive cranking involved it wil start ok then the idle drops after 3 seconds plugs are dry and i have sprayed carb cleaner and have misted water on the lines as well no vac leaks anywhere

 

Mmm, might be the ignition coil, distribiter or a cable that runs to it. Try putting one of those injector additives and see what happens.