5 SIMPLE TECHNIQUES FOR JDM TOYOTA 4A-GE

What other sensors should I glance so as to add in excess of the common 4age, inlet air temp plus a wideband sensor are already suggested, is there anything I should really include? When there is not a patch harness, how hard can it be to produce my own patch harness provided I have no past wiring expertise? Cheers PaulThis products is going to be