HomeCardone 78-8403F Engine Control Module
Part #: 78-8403F

Cardone 78-8403F 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, Contour and Mystique
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Reliable Engine Control Module for Ford Contour and Mercury Mystique

The Cardone Engine Control Module (ECM) part number 78-8403F is designed specifically for Ford and Mercury vehicles, including the Contour and Mystique models. This ECM ensures proper engine management and optimal vehicle performance by controlling critical engine functions.

  • Compatible with Ford Contour and Mercury Mystique models
  • Part number 78-8403F for precise fitment
  • Part of Cardone's Engine Control Module product line
  • Supports essential engine and powertrain control functions
  • Includes important programming and reset considerations

About the Cardone Engine Control Module Product Line

The Cardone Engine Control Module product line focuses on delivering reliable and compatible ECM units for various vehicle makes and models. These modules are engineered to meet OEM specifications, ensuring seamless integration with your vehicle's existing systems. The 78-8403F ECM is part of this line, providing a dependable solution for Ford and Mercury vehicles requiring engine control module replacement.

Detailed Product Description

This Cardone ECM (part number 78-8403F) is a critical component for managing engine operations in Ford Contour and Mercury Mystique vehicles. It controls fuel injection, ignition timing, and other engine parameters to maintain efficient performance and emissions compliance. The module is designed to replace the original equipment manufacturer (OEM) part, ensuring compatibility and functionality.

Common Issues Addressed by This ECM

  • Engine stalling or failure to start
  • Check engine light related to ECM faults
  • Poor engine performance or misfires
  • Powertrain control module communication errors
  • Issues with passive anti-theft system (P.A.T.S.) integration

Installation Notes and Tips

  • Verify vehicle compatibility with Ford Contour or Mercury Mystique before installation
  • Some Chrysler PCM units with a "v" suffix require VIN programming; check if applicable
  • Not all Ford vehicles require a passive anti-theft system (P.A.T.S.) reset—consult vehicle-specific guidelines
  • Use a compatible diagnostic tool, such as a Tech 2 scanner, for programming and resetting procedures
  • Confirm the original ECM/PCM is the cause of the issue before replacement

Quality Assurance and Warranty

Cardone Engine Control Modules are manufactured to meet strict quality standards and are tested for reliable operation. While specific warranty details for part number 78-8403F should be confirmed at the point of purchase, Cardone typically offers coverage against defects in materials and workmanship to ensure customer confidence.

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997FordContour2.0LL4N/AAll Calibrations with Module ID ML2-317; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Correct VIN and OE Number required when ordering; Engine Control Module
1997MercuryMystique2.0LL4N/AAll Calibrations with Module ID ML2-317; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Correct VIN and OE Number required when ordering; 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:

97BB12A650AVA97BB12A650AVB97BB12A650AVCF7RZ12A650AKBF7RZ12A650AKCF7RZ12A650ALBF7RZ12A650AVB

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