I just did installed smarty jr me deleted. Turned on first time no engine check then driving few mins it get engine check

Mass airflow "a" circuit low power
P0102

What I do now?

Weird light poor sec then back full power few mins then started poor light bulb few sec then full

 

Have you tried clearing the code?

How about returning it to stock, and reprogramming?

 

Found loose plug maf I did try.learn how to unlock tab red cuz throttle plug. Cleared no code engine

 

Makes perfect sense.