1981 RELIANT, ARIES, OMNI, HORIZON ENGINE COMBUSTION CONTROLLER ECM NOS. MOPAR# 5213343. This is a New Genuine MoPar Engine ECM for the 1981 Reliant, Aries, Omni and Horizon with the 2.2 Engines With Federal and Canadian Emissions. Includes O24 and TC3. This is from a Former Chrysler Plymouth Dealership Parts Stock I cleared in the 1990's. The Original MoPar Box is Faded and Aged but the ECM is New and in Excellent Condition.