Datsun / Nissan ECU Up for sale is a Working, in excellent condition 1987 Datsun / Nissan Pulsar Engine fuel / engine control module. Part number - A11A09A31 / KN13-E16i / 23710-84M10 79 See the top or large photo. this for automatic transmission, federal emission cars.This from the EPL Vintage control unit collection. Try finding this at the dealer, they will tell you "that's been NLA for 10 years now, if we had it it would be $800" Try salvage yards, they will tell you "we crushed all those 5 years ago at least" But we have it here, and at a great price! This unit also comes with a 30 day functionality warranty. 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. 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.