Sudden No Start Problem

[1750s]

I'm always looking for the simple solution with Alfas and it's occurred again with success. My Verde starts very reliably until the other day and nothing but solid cranking, no fire. Looking thru a few threads, I understood the sensitivity of the L-Jetronic to air leaks. I looked over all hoses and the air intake/AFM. I finally noticed the upper air filter housing clamp was loose. I corrected this and made sure all clamps and filter were snug and properly installed. I turned the key and instant fire and smooth idle. This again reinforces to look for the simple fix by insuring all the standard fittings and connections are correct.