Nissan Altima ECU JA18M72 Z71 / JA18-M72 Z71 / JA18M72Z71 / HK Up for sale is a Working, in excellent condition Nissan Altima Engine fuel / engine control module. My list shows this fits 1999 automatic federal emission, however this may also fit early & late 1998 as well as 2000 models as Nissan does not run these entirely by year. Part number is listed at the top or in the large picture. As always your best bet is to match the part number to the one on your original ECU. These units have been NLA for quite a while now, and are not at all easy to find, at any price much less as fair as this. Usually over $1000 new, a good used one from us is 1/10 this! These are usually fairly reliable, however can easily be damaged by wiring faults or voltage spikes (caused by a faulty alternator). A faulty ECU can cause problems ranging from a bad idle control circuit to random no injector pulse signal (causes no start or random cut outs) & many others. These are extremely expensive to buy new.This comes with a 30 day functionality warranty from e-partsland.