i have an 87 4runner 22re 5 speed when i start it up when it is cold should it have a fast idel because mine does not it sounds like it wants to but never does

 

When you first fire it up I believe it will be around 1500-1600 then it will either rise or lower depending on intake temperature readings from intake system (AFM?). Qualitative descriptions don't really help us, give us a few numbers from the tach and we'll go from there.

 

Incorrect. It doesnt take temperatures from air. It takes temperatures from the coolant. And it doesnt even electronically read them. There is a wax valve, like a thermostat, under the throttle body that allows more or less air past it as the vehicle is warming up to "fast idle".

 

when i start it . it is at normal idle 850 rpm does not go any higher

the temp out side is in the low 40s

 

no but it takes forever to warm up

 

I have this same problem and was just getting on to post up a question! It's -3 out right now and when I start the truck it goes to ~750 and stays there. It's never had a cold-start high idle and I just hadn't gotten around to figuring it out.