Up for sale is a Working, in excellent condition Nissan Sentra SER / NX2000 Engine fuel / engine control module.  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 as there are several of these you may potentially have. 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. 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 is a rare one! At the time of listing, it is the only one on ebay. This unit comes with a 30 day functionality warranty