Cleaned out air control valve and this changed nothing
My car has 250000 miles.
My car has a manual transmission.
A higher than normal idle can be due to a stuck open idle control valve or a vacuum leak in the intake when the engine is cold. You may have a bad cold start injector system. I would recommend having the engine diagnosed by a mechanic for the high idle so that you can have a better idea of the cause behind the higher than normal idle.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing