Very high idle that wont come down

[silver '88]

My 88 festiva ran just fine going to work the other day but when i went to leave it revved up to about 3000 rpm and would not come back down. I tried my best to find any vacum hoses loose cracked or missing and for a stuck cable but could not find anything out of the ordinary.

[Tim]

Did you push on the gas pedal? Sometimes they stick and you have to tap it to bring it down to normal.

[WmWatt]

Did you check the throttle and choke linkages on the outside of the carburettor? They are easier to see when the air cleaner is removed. It's a good idea to spray them clean with carb cleaner whenever the inside of the carburettor is cleaned.

If you can't find a mechanical cause, there is always the ignition control module inside the distributor. As a last resort it can be removed and taken it to be tested which some parts stores do for free.