when it gets hot or ive been driving for awhile my rpm drops down to 500 and then jumps back up to like 700 or 800 and then i turn my lights on and its goes back to normal for like 15mins and then it stars again what could be the problem

 

anyone

 

most likely a dirty Idle Air Control Valve

https://honda-tech.com/forums/acura-integra-6/%2A%2A%2Ahow-clean%2A%2A%2A-your-iacv-k-idle-air-control-valve-1575913/

BUT if that doesn't fix it, maybe it's a dirty Fast Idle Thermo Valve if you have a 94-95 GSR or an Automatic motor.

https://honda-tech.com/forums/acura-integra-6/%2A%2A%2A-how-%2A%2A%2A-clean-your-fitv-aka-fast-idle-thermo-valve-1564019/

 

ima check the iacv tomorrow n im ls not gsr n im not automatic

 

bump i cleaned iacv and nothing made it worse now it just stays at 500 rpms instead of going up a little

 

i am having this exact same problem...any word on what the issue was/is?

 

so you might wanna reset your ecu now that it's clean. Maybe that will help. the only other thing i can think of is check plugs wires dizzy anything easy that you can rule out.

 

check your grounds

 

How old is your car? From personal experience, its a TPS, unfortunately aftermarket ones are total crap, so just go get a throttle body with a fixed TPS. The IACV cleaning is good, now just a timing adjustment, a fuel filter and youre set!