Cardone 77-7170 Engine Control ModuleRestore engine management performance with this remanufactured Cardone Engine Control Module for select Pontiac Fiero applications. Built to meet or exceed original equipment performance, this ECM is remanufactured with attention to the failure points that commonly affect drivability and reliability.Fits 1986-1988 Pontiac Fiero, N/A. Transfer PROM(s)/CALPACK and perform any required relearns on the new Engine Control Module.Key Features Remanufactured Original Equipment-style ECM for a direct vehicle fit Reverse-engineered to identify and correct original design weaknesses Critical components are re-soldered or replaced at Cardone’s Philadelphia manufacturing plant 100% computer tested for function and reliability On-car validation is used to verify durability and performance on applicable units Earth-friendly remanufacturing process reduces energy and raw material use versus building a new part Detailed DescriptionCardone 77-7170 is a remanufactured engine control module for the 1986-1988 Pontiac Fiero. It is engineered as an OE-style replacement for the original ECM, with internal repairs focused on electrical integrity and long-term operation. This part number is also referenced as Pontiac 1227170 for the same application.Cardone’s Engine Control Module line is built around remanufactured electronic and powertrain control units that are tested after repair to confirm proper operation. For Pontiac Fiero owners dealing with ECM-related drivability concerns, this module provides a direct replacement path when the original unit has failed.Common Issues This ECM Can Address No-start condition related to ECM failure Intermittent stalling or rough running caused by control module faults Check engine light concerns tied to internal ECM problems Loss of fuel or ignition control from a damaged module Driveability issues after diagnosing power, ground, and wiring integrity Installation Notes and Tips Verify the original failure before replacing the ECM; inspect grounds, power feeds, wiring harness condition, and shorted relays or solenoids. Transfer PROM(s)/CALPACK from the original unit as required for the application. Perform any relearns required after installation. Confirm the engineering ID on the original ECM/PCM matches the correct Cardone part number before installation. Quality AssuranceEach Cardone remanufactured control module is computer tested, and applicable units are bench-tested or validated on-vehicle to confirm operation. The remanufacturing process includes re-soldering or replacement of critical components to improve electrical connection quality and reduce intermittent failures.