Post by
3Q Jay »
https://forums.nicoclub.com/3q-jay-u16163.html
Fri Oct 14, 2011 6:49 pm
i expect you will do anyway, but would suggest replace in pairs. on the '94 (yes obd 1, not 2) i only replaced one intially, and within 50 miles, i got a mil for the other one--probably due to imbalance.
edit: i did use the NTKs i'm solder competent, but like the convenience.
one more thought: on the '95 i got a left bank O2 mil after doing egr tube roto-rooter. i had to reset 3x, but after some hard runs it has been fine for last 2.5 yr.