Land rover Ranger rover V8 ECU Up for sale is a Working, in excellent condition Land rover Discovery/ Range rover V8 Engine Computer / ECU. Part number-- 80506 A / AMR-3729 / 14cux .  This is correct for the 3.9 Liter engines.  You mostly find these units in 1994 and 1995 Discovery, as well as some short wheel base later model range rover classics.   Located under your passenger seat, OR to the right of your glove box.

Year - 91 92 93 94 95 / 1991 1992 1993 1994 1995

If you have a land rover that's set up, you need to keep one of these as a spare! A failed or water damaged Lucas ECU could potentially stop your rover dead in it's tracks, and if you needed one that day, a dealership and a $2400 bill would likely be your only option! 

My list shows this fits most 91-95 year Land rover 8cyl cars. Your best bet is to match the part number up with the unit you are replacing. A faulty ECU is one of the primary causes of false check engine lights, intermittent no start or random cut out. Sometimes these will lose injector pulse (no fuel injector function / no start). They also sometimes lose the fuel pump relay turn on mosfet, which is a pretty common issue with these, among others. Price this at a dealer, and you will buy from me... You will be shocked at the price. This comes with a 30 day warranty. These units are very hard to find!