Q: Check engine light on after air pump intake hose left off at air cleaner box on 2008 Chevrolet Colorado

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Air hose on air filter box removed to facilitate access for headlamp replacement. Forgot to reconnect and a couple days later check engine light came on. Hose has been reconnected but light is still on. Will it reset itself or does it need to be manually reset? (assumming hose off was the 'triger')
(1) Answer
Get the computer scanned for diagnostic codes. That will tell you everything.
Here's a directory link for you: