the trick to not getting a CEL is to install it correctly.
i kept getting a CEL... but turns out i forgot to plug in one of the black swithes
so i left out both the black and a blue when its only suppose to be the blue...
and i love my AEM CAI
=) even on this gt auto
maybe this could help you out a bit.. http://www.celica-club.co.uk/pages/modifications/stepheng/aem.htm
^^ they installed a first gen AEM
but pretty much teh same thing and i just love this picture..
the AEM CAI
is the first engine mode i've ever done and took 7hrs
but now if i was to do it again it would take maybe an hour..