Post by
onosqv »
https://forums.nicoclub.com/onosqv-u507.html
Sun Mar 18, 2007 8:13 am
sensor is located on the header... There's EGR, AIV, o2.
EGR has a pipe going back toward the intake mani.
AIV connects to the large black resonator box to intake piping.
One left over is O2.
Ghetto rigged intake itself won't affect your mileage... unless it has leaks or the better revving sound makes you pedal to the metal everywhere .