Engine Control Module (ECM) – GM (88999129)

an Engine Control Module from GM Genuine Parts, part ECM) – GM (88999129, is a direct replacement for the unit fitted at the factory. In service it plugs into the factory harness and runs the system it was programmed for. Catalogue application notes: All models. 2nd Design. Stamped #1226930. Check the part number stamped or moulded on the original against ECM) – GM (88999129 — a number that looks close can belong to a different circuit. Ships from our US warehouse.