Saab 900 ECU Up for sale is a Working, in excellent condition Saab 900 ECU out of a 1994 900s non-turbo 2.3l 4cyl. Saab Part number-- 42 39 257 (4239257) Bosch Part number 0 261 203 333 (0261203333). This is OEM to 1994 900s 2.3 models but will probably fit some other models too. This is one of the most common no start or random stalling problems with the Motronic ECU's. These can also be a problem with check engine lights / emission control issues. If yours does not have this problem, keep an extra ECU in the trunk, you might some day be glad you did... These units are over $1000 at the Saab dealer, and finding a good one second hand is getting to be a real chore. Thanks for looking and good luck! No reserve so bid to win this. SHIPPING 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. Please note that my payment details are listed below.