Codes P0102 and P0113
 

Hi guys, I just tuned my car with OFT Stage 2+ last night. Went driving around, throttle response feels a little weird but I think that'll go away, no issues. Come back home, install a K&N drop-in filter and call it a night.
Wake up this morning, start my car and see the slip light and CEL. Check the codes and its P0102 (MAF Circuit Low Input) and P0113 (Engine running rich). Car also feels a little sluggish today. Can these be caused by the tune or did I mess up with the filter? Thanks.

EDIT: After thinking about it, I probably didn't reconnect the MAF sensor. Whoops...