Peugeot ECU This is a ECU for a Peugeot 505 Turbo, Bosch part number 0 280 000 343 (0280000343). This unit is from a 1987 505 and should also work with other turbo Peugeots of the same vintage as well. But it's your best bet to check the part number on your ECU. These units have never been very common, and as they get older the chances of finding a good one gets lower and lower, so buy it now or you might regret it!