What intake did you install? Also did you unplug the negative battery terminal for about 30 minutes when you installed the new intake? This resets the ecu and allows it to learn the new intake. A few minutes of idling after starting the car again will help it learn faster. Also FYI The SVT airbox is very good so you might consider just reinstalling that.
spyder cold air intake and yes i did i had to take the battery and the battery box completely out so that i could install the intake and i have been considering just putting the original intake back on
I have seen that style intake before and your maf sensor code could be from a bad seal where the sensor plugs into the intake tube. You can try reseating it, possibly add an o-ring. Honestly I would probably put the SVT air box back on and consider it a lesson learned in cheap parts. I tried a cheap intake on my Zetec at first and ended up with a Volant and it was worth the money spent.