HomeCardone 78-4421 Engine Control Module
Part #: 78-4421

Cardone 78-4421 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
$229.51Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
Out of Stock
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
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Cardone Engine Control Module 78-4421

The Cardone Engine Control Module (ECM) part number 78-4421 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 78-4421 for precise identification
  • Engine Control Module from Cardone's Engine Control Module product line
  • Supports essential engine management and diagnostics
  • 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 replacement ECMs engineered to meet or exceed OEM specifications. These modules are designed to integrate seamlessly with the vehicle's existing systems, providing accurate engine control and communication with other onboard components. The 78-4421 ECM is part of this line, ensuring compatibility and performance for Ford and Mercury vehicles requiring precise engine management solutions.

Detailed Product Description

The Cardone 78-4421 ECM is a critical component for the engine control system in Ford Escort and Mercury Tracer vehicles. It manages various engine functions such as fuel injection, ignition timing, and emission controls. Proper operation of this module is essential for maintaining engine efficiency and meeting emission standards. This ECM requires specific programming steps, including VIN programming for Chrysler PCM's with a "v" suffix and potential passive anti-theft system (P.A.T.S.) considerations for Ford vehicles. It is important to verify the correct ECM part number and ensure proper reset procedures are followed after installation.

Common Issues Addressed by This ECM

  • Engine misfires or poor performance due to faulty control module
  • Check engine light triggered by ECM-related faults
  • Vehicle starting problems linked to ECM or P.A.T.S. system
  • Communication errors between engine sensors and control unit
  • Emission control failures requiring ECM replacement

Installation Notes and Tips

  • Verify vehicle compatibility with Ford Escort or Mercury Tracer before installation
  • Confirm part number 78-4421 matches the original ECM
  • Perform VIN programming if applicable, especially for Chrysler PCM's with a "v" suffix
  • Check if passive anti-theft system reset is required for Ford models
  • Use a compatible diagnostic scanner to reset and program the ECM after installation

Quality Assurance and Warranty

Cardone ECMs are remanufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Cardone typically offers coverage against defects in materials and workmanship. It is recommended to consult the product documentation or supplier for exact warranty terms related to part number 78-4421.

This part fits 2 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
1991FordEscortManual1.9LL4N/Awith Federal Emission System; ID #(s) F1CF-HA; This Unit is Pre-Programmed at the Factory; Engine Control Module
1991MercuryTracerManual1.9LL4N/Awith Federal Emission System; ID #(s) F1CF-HA; 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:

F1CF12A650HAF1CZ12A650HA

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