first of all i have a 97 prelude sh w/ cai as my only mod

about a month ago my check engine light came on, along w/ the atts light. i took it to the dealer and he hooked it up and told me the codes were

42-1 pgm-fi communication error

43-1 pgm-fi (f1 sensor)

72-1 tire diameter different

p1279 vtec system failure (i think this is just something w/ a screen being clogged and not allowing for enough oil pressure, so the vtec isnt kicking in)


i have no idea if this has nething to do w/ these codes but my powersteering isnt working and the fluid is at the right level.

i also checked atts, and clutch fluids and there all at the right levels

ne suggestions as to what these codes are, and how much to fix/could i do them myself?

thx