BMW 750 V12 Engine ECU set - 87 88 89 90 year Up for sale is a Working, in excellent condition BMW V12 ECU These cars have the 2 separate engine bank control units, that's the red label - 0 261 200 156 pair, as well as the throttle / communicator ECU, which is the -1 137 328 019 black label unit. Together, this is how the V12 works. If you have any single ECU that is not working properly, you may have an engine that only runs on 6 cyl's, or not at all...This is a bargain price for a "confirmed working" ECU   Please check the part number off your original set before buying, as there are several different types of these. Check my other store items, I probably have what you need if this is not the one. This is one of the most common no start or random stalling problems with these Motronic ECU controlled cars. If yours does not have this problem, keep an extra ECU in the trunk, you might some day be glad you did... These come with a 30 day functionality guarantee !