My daughter's 1999 has both of these codes. I suspect something in the FI, but the manual is very vague. Any help?

Thanks

Keep reading this forum. Do searches on "intake manifold" and "isolator bolts". You'll get some good stuff, such as:
.
http://www.automotiveforums.com/vbulletin/showthread.php?t=463547&highlight=intake+manifold