2001 Jetta VR6 Code issues.....

Hi... I just installed a cold air intake system for my 01 Vr6. I am getting 3 codes after I installed it... The first one is EPC, the Second is check engine, and last but not least is a circle with arrows around it.... I have no idea whats going on. I simply removed the stock airbox and installed a pipe with the appropriate airfilter element and now its flashing all those codes.... HELP!!! thanks...