Cardone Engine Control Module for 1986 Ford MustangRestore engine management performance with this Cardone remanufactured Engine Control Module, part number 78-4395. It is built to meet or exceed original equipment performance and is validated for 1986 Ford Mustang and 1986 Mercury Capri applications with California Emission System calibration.Key Features Remanufactured Original Equipment-style ECM for a precise vehicle fit Critical components are re-soldered or replaced at Cardone’s Philadelphia manufacturing plant 100% computer tested for reliability On-car vehicle validation is used to confirm durability and performance Remanufacturing reduces energy and raw material use versus producing a new part Product DetailsCardone’s Engine Control Module line focuses on correcting common failure points found in original units. Through reverse engineering, engineers identify design weaknesses that contributed to failure and address them during remanufacturing. The result is a replacement ECM that supports proper fuel, spark, and emissions control on the 1986 Ford Mustang and 1986 Mercury Capri, including California Emission System applications. Part number 78-4395 is also referenced for Ford and Mercury interchange applications, including E6SF12A650APA, E6SF12A650APB, and E6SZ12A650APB.What This ECM Helps Address No-start or hard-start conditions related to ECM failure Driveability problems caused by incorrect fuel or ignition control Intermittent stalling or rough running from internal module faults Check engine concerns tied to electronic control issues Emissions-related performance problems on California Emission System vehicles Installation Notes and TipsBefore replacing the original ECM, verify the root cause of the failure. Common causes include poor grounds, power supply issues, damaged wiring harnesses, and shorted solenoids or relays. For Ford applications, confirm the engineering ID on the original module crosses to Cardone 78-4395. Some Ford vehicles require a PATS reset, but not all do; check the correct service information for the vehicle. Chrysler PCM units with a V suffix require VIN programming, and GM vehicles may require Passlock, Passkey, or VATS relearn procedures when applicable.Fits 1986 Ford Mustang, N/A. Fits 1986 Mercury Capri, N/A.Quality AssuranceEach Cardone remanufactured ECM is computer tested, and many applications are bench-tested or validated on the vehicle depending on the design. The remanufacturing process is built to restore dependable electrical connections and consistent module operation for long-term service.