03 corolla petrol reving on its own - Corolla Toyota Cars & Trucks

Park or moving.? both
hot engine or cold or both?
we can go as far as you want, ask. 03 corolla.

what engine, but ive asked 4000 times, now, and zero answers.
no own knows, it seems whats under that hood,
do tell. at least you know its and o3.

do answer as it is dangerous car moving, id not drive it.

btw , this is called idle controls.
and is the last thing on any EFI engine to work right.
on new cars its the first to fail due to Throttle by wire BS.

the idle controls can fail for fuel mix wrong, or vacuum leaks.