I put a cone air filter w/ a short extension to get the filter closer to stock cold air opening by the firewall and trans interceptor on friday also cleaning throttle body opening. Test drove it yesterday engine light came on. I figured that the computer needed to be reset, so I disconnect the battery overnight and cleaned the MAF sensor w/ rubbing alcohol and Q-tips. Driving today on 55 the check engine light came at 60mph and the light started blinking and the engine started sputtering and idleing really rough. I gave some gas the roughness went away and the light stopped blinking and stayed solid. I m pretty good with engines but I stumped?

Help ?

Anybody Please?