sup ppl i have a 92 ex accord with the f22 a6 "If that helps" anyways i went to crank it up about 4 days ago and the car started to die up and down from 1000rpm to 2000 rpm.It stayed like this until the car was warm then it stoped so i dident think anything of it.Well no it has gotten worse it does it all day when its cold or warm. I was told by a friend to replace the pcv and the fast idle valve.I did and nothing changed I have also unpluged the tps and it make no difference.My check engine light is not on.What could this be?????

 

Is the engine full of coolant & block burped via the bleed screw at the T-stat?
Can you unplug the IAC and have the RPM drop?
Is the throttle cable tight?
Does the RPM drop when you step on the brake? [vacum leak]

 

have a look at https://honda-tech.com/zerothread?id=1003988 step 7 is likley causing your idle problem. Depending where the valve is mounted you can take it apart without removing it.

 

In addition what has been mentioned:

air leak in the intake manifold area -- bad gasket somewhere (do the propane gas test)

bad MAP sensor

 

i have already replaced that step seven device.Same problem, I was told that because my car has an exhaust leak from the down pipe from the headers that may be it.Is this true?

and i have tried to burp the block when i unscrew it coolant only spit out when the car idles up it stiops when it go down then it revs up then it shoots agian.

 

vacuum leak.

 

what about that black box on the bottome of the intake manifold one line is broken .would this make this problem?

 

It might be a source of problems.