CAI throwing CEL
 

I have a 2007 jetta 2.5 that came with a cold air intake installed when i bought it, but has been giving me a CEL about an IAT error. I replaced the IAT sensor but the CEL is still on and because of that won't pass an emissions test. I took it to a garage and they said the only way to fix it was to replace the CAI with an OEM intake, is there something else i can do? I'm in desperate need of help.