Ok I am having troubles with this car its a 2001 camry se auto, and its idling low 500 rpms or so. It was acting fine then it wasnt. I don't drive this car so i can't say how long its been doing it.

what ive looked into so far
-its not throwing a check engine
-the idle doesnt move when you go from park to reverse or drive
- drives fine but has died now several times at red lights

so basically idles low, has died but starts right back up, drives normal besides when it idles.

I've researched a little but it doesnt seem to be the iac (sprayed some throttle body cleaner down its venture still nothing), it drives to normal to be something with the fuel. Im thinking its gotta be something stupid like a sensor (tps, coolant temp, maybe egr)

any opinions would be helpful