Engine Control Module for Mazda 323 and Mercury TracerRestore engine management performance with this remanufactured Cardone Engine Control Module, part number 72-7243. It is built for direct replacement use on select 1988-1989 Mazda 323 and 1989 Mercury Tracer applications with the listed emission and identification requirements.Key Features Remanufactured original equipment-style engine control module for proper vehicle fit 3 rectangular connectors with blade-style male terminals Aluminum housing for durable electronic module construction 100% computer tested for functionality and reliability Critical components are re-soldered or replaced during remanufacturing No flash programming required and no removable PROM Pre-programmed at the factory for the listed applications Product DetailsCardone Engine Control Module 72-7243 is remanufactured to meet or exceed original equipment performance expectations. The remanufacturing process includes reverse engineering to identify common failure points, followed by correction of design weaknesses and replacement or re-soldering of critical internal components. This approach supports stable electronic operation in vehicles that rely on accurate fuel, ignition, and powertrain control. This part cross-references Mazda B6K118880 and Mercury E9GY12A650A for the same application.Compatible With 1988-1989 Mazda 323, N/A, with Federal Emission System and OE # B6K1-18880; and 1989 Mercury Tracer, N/A, without California Emission System and ID #(s) B6K1-18-880. The Cardone 72-7243 is a direct-fit remanufactured ECM for these specific configurations.Common Problems This ECM Can Address No-start or hard-start conditions caused by a failed engine control module Driveability issues related to unstable fuel or ignition control Intermittent stalling from internal electronic faults Check engine concerns tied to module failure Vehicle performance problems after confirming wiring, grounds, and related components are sound Installation NotesBefore replacing the original ECM, verify that the root cause of failure has been corrected. Common causes include poor grounds, power supply issues, damaged wiring harnesses, and shorted solenoids or relays. Confirm the Ford, Mazda, or Mercury engineering identification against the correct Cardone number before installation. For the listed Mazda 323 and Mercury Tracer applications, the module is pre-programmed at the factory and does not require flash programming.Chrysler PCM VIN programming, Ford PATS reset, and GM Passlock or Passkey VATS procedures are not applicable to these listed fitments, but always follow the OE service manual for vehicle-specific diagnostics and relearn steps.Quality AssuranceCardone remanufactured electronic and powertrain control modules are computer tested and validated for durability and performance. The remanufacturing process also reduces raw material and energy use compared with producing a new part, while maintaining OE-style fit and function for the specified applications.
