HomeCardone 78-6491 Engine Control Module
Part #: 78-6491

Cardone 78-6491 Engine Control Module

Engine Control Module
2 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: Ford and Mercury, Escort and Tracer
Easy Returns — Return within 60 days for a full refund
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Overview of Cardone Engine Control Module 78-6491

The Cardone Engine Control Module (ECM) part number 78-6491 is designed for select Ford and Mercury vehicles, including the Escort and Tracer models. This ECM plays a critical role in managing engine functions and ensuring optimal vehicle performance.

  • Compatible with Ford Escort and Mercury Tracer models
  • Part number 78-6491 for precise identification
  • Engine Control Module from Cardone's Engine Control Module product line
  • Supports proper engine management and diagnostics
  • Includes important considerations for VIN programming and anti-theft systems

About the Cardone Engine Control Module Product Line

The Cardone Engine Control Module product line focuses on delivering reliable replacement ECMs that meet OEM specifications. These modules are engineered to control engine operations, fuel injection, and emission systems. The 78-6491 ECM is part of this line, ensuring compatibility and performance for Ford and Mercury vehicles requiring precise engine control solutions.

Detailed Product Description

The Cardone 78-6491 ECM is a direct replacement part designed to restore engine control functionality in compatible Ford Escort and Mercury Tracer vehicles. This module manages critical engine parameters and communicates with other vehicle systems to maintain efficient operation. It is important to note that Chrysler PCM units with a "v" suffix require VIN programming, and similar considerations apply to Ford vehicles with passive anti-theft systems (P.A.T.S). Proper installation and programming are essential to ensure the ECM functions correctly.

Common Issues Addressed by This ECM

  • Engine stalling or failure to start due to faulty ECM
  • Check engine light illumination related to engine control faults
  • Poor engine performance or irregular idling
  • Communication errors with vehicle anti-theft systems
  • Failure to pass emissions tests caused by ECM malfunction

Installation Notes and Tips

  • Verify the part number 78-6491 matches the original ECM before installation
  • Ensure VIN programming is completed if required, especially for Chrysler PCM units with a "v" suffix
  • Check if the vehicle’s passive anti-theft system (P.A.T.S) requires reset or reprogramming
  • Use a compatible diagnostic tool such as a Tech 2 scanner for programming and resetting procedures
  • Confirm the ECM is the root cause of the issue before replacement to avoid unnecessary installation

Quality Assurance and Warranty

Cardone Engine Control Modules undergo rigorous testing to meet OEM standards for durability and performance. While specific warranty details for part number 78-6491 should be confirmed at the point of purchase, Cardone typically offers warranties that cover defects in materials and workmanship to provide confidence in product reliability.

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
1997FordEscortN/Awith Calibration # 7-07T; Emission Calibration / Tear Tag on Front Door Jams, in Trunk, or Under Hood; This Unit is Pre-Programmed at the Factory; Engine Control Module
1997MercuryTracerN/Awith Calibration # 7-07T; Emission Calibration / Tear Tag on Front Door Jams, in Trunk, or Under Hood; This Unit is Pre-Programmed at the Factory; 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:

F7CF12A650BAF7CF12A650BBF7CF12A650BCF7CF12A650BDF7CF12A650BEF7CZ12A650BAF7CZ12A650BBF7CZ12A650BCF7CZ12A650BDF7CZ12A650BEF7PF12A650BAAF7PZ12A650BAA

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