Peugeot ECU Up for sale is a Working, in excellent condition Peugeot 405 ECU. Bosch Part number-- 0 261 200 159 . This unit is from a 405s, this ECU should also work with all 405s and 405DL models before 2/90 with the XU9J2 engine, possibly even other models not in this range. Check the part number off your original before buying. These can very commonly cause multiple strange problems with these cars, including non running. These are very hard to find now in good working condition, new is over $1000, rebuilt $500+. This comes with a 30 day functionality guarantee.