I bought a 99 ex with a d15b bottom y8 head im having idleing issues i cleaned my iac ive checked my alternator let me start w the car sat for 2 years my iac is clean and my alternator is good my car idles normal on cold start but as it warms up it get higher till it idles at 2k but when i turn my wheel idle goes down or if i put my ac on it idles normal or when my headlights r on im confused as **** on why it only idles normal when ac is on or when the engine is cold, idk if its related but my left blinker only works sometimes as well please help lol also my alternator isnt bad but my battery only has half life at 100% charge

 

You're alternator outputs charges to your battery it has nothing to do with idle. Check vacuums, seals, and gaskets again. Cleaning the IAC sometimes works but not all the time. The diaphragm can still corrode. Other suspects would be tps & map sensor.