99t ECU Up for sale is a Working, in excellent condition Saab 99t Lambda Control ECU. Part number-- 0 280 800 004 (0280800004). This unit is the original for 78 99 turbos, but should fit other models of the same vintage as well, -I know this will also fit most 1979 & 1980 900-turbo as well, but it is the buyers responsibility to find this out. As always your best bet is to match the part numbers with the part you need. A faulty ECU can cause a whole hots of issues with these cars, including non running, and random cutting out (but usually it will re-start moments later). Also idle control & emission issues are possible (excess smoke or overheating caused by lean running). Hot or cold start issues can be caused as well. These units are no longer available almost everywhere and VERY hard to find used. If you can find a new one, they are usually in the $1000+ range. Ouch, not here! This comes with a 30 day warranty. SHIPPING & OTHER DETAILS: I use the ebay shipping calculator on all my new listings, it will calculate your exact shipping for either USPS parcel post or USPS priority based on your zip code. please let me know how you like it Vs. the flat rate shipping methods many other sellers use. The main advantage with this system is you will never be overcharged for S&H! A very nice bonus. This is a new seller name for us as we now have 2 locations, but we are not new to ebay. you may e-mail if you wish to view out past feedback expect to receive your part fast and in as described condition, it's the only way to ebay. Please note that my payment details are listed below.