HomeCardone 77-6458 Engine Control Module
Part #: 77-6458

Cardone 77-6458 Engine Control Module

Engine Control Module
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Engine Control Module
Fitment: Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac, Skyhawk, Cimarron, Cavalier, Firenza, and J2000 Sunbird
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Overview of Cardone Engine Control Module 77-6458

The Cardone Engine Control Module (ECM) part number 77-6458 is designed for select GM vehicles including Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. This ECM is engineered to manage engine functions and optimize vehicle performance for models such as the Cavalier, Cimarron, Firenza, J2000 Sunbird, and Skyhawk.

  • Compatible with multiple GM makes and models
  • Part number 77-6458 ensures precise fitment
  • Manages engine control and powertrain functions
  • Supports vehicles requiring VIN programming
  • Part of Cardone's Engine Control Module product line

About the Cardone Engine Control Module Product Line

The Engine Control Module product line from Cardone focuses on delivering reliable and direct-fit ECM replacements for a variety of vehicles. These modules are designed to meet or exceed OEM specifications, providing a dependable solution for engine management systems. The 77-6458 ECM is part of this line, ensuring compatibility and performance for the specified GM models.

Detailed Product Description

The Cardone 77-6458 ECM is a critical component that controls engine and powertrain operations. It processes data from various sensors to regulate fuel injection, ignition timing, and emissions systems. This module is compatible with Buick Cavalier, Cadillac Cimarron, Chevrolet Firenza, Oldsmobile J2000 Sunbird, and Pontiac Skyhawk vehicles. It is important to note that Chrysler PCM units with a "v" suffix require VIN programming, and similar considerations apply to GM vehicles when replacing the ECM. Proper programming and reset procedures may be necessary to ensure full functionality.

Common Issues Addressed by This ECM

  • Engine misfires or poor performance
  • Check engine light illumination due to ECM faults
  • Starting problems related to powertrain control
  • Faulty sensor data processing causing drivability issues
  • Emission control system malfunctions

Installation Notes and Tips

  • Verify the part number 77-6458 matches the original ECM
  • Check for any required VIN programming or immobilizer resets
  • Use a compatible diagnostic tool to clear codes after installation
  • Confirm the vehicle’s passive anti-theft system status before replacement
  • Consult vehicle-specific service manuals for detailed procedures

Quality Assurance and Warranty

Cardone Engine Control Modules undergo rigorous testing to ensure reliability and performance. While specific warranty details for part number 77-6458 should be confirmed at the point of purchase, Cardone typically offers coverage against defects in materials and workmanship. Proper installation and programming are essential to maintain warranty validity.

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1984BuickSkyhawk2.0LL4N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1984CadillacCimarronN/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1984ChevroletCavalierN/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1984OldsmobileFirenza2.0LL4N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1984PontiacJ2000 Sunbird2.0LL4N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1226458

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.