Cardone 78-6890 Engine Control Module (ECM)

Remanufactured ECM for 1997 Ford and Mazda

Cardone 78-6890 is a remanufactured engine control module for select 1997 Ford Ranger, Ford F-100 Ranger, and Mazda B3000 applications with calibration # 7-55H. It is built to restore factory-level engine management performance with a pre-programmed unit for the listed applications.

Key Features

• Remanufactured Original Equipment-style fit for the listed vehicle applications
• Pre-programmed at the factory for the specified calibration
• Critical components are re-soldered or replaced during remanufacturing
• 100% computer tested for reliability and function
• On-car validation is used to verify durability and performance
• Earth-friendly remanufacturing process reduces raw material and energy use versus new part production

Product Details

The Cardone Engine Control Module line focuses on restoring electronic and powertrain control performance by identifying common failure points and correcting original design weaknesses during remanufacturing. For this application, the 78-6890 ECM is intended for 1997 Ford Ranger, 1997 Ford F-100 Ranger, and 1997 Mazda B3000 models with calibration # 7-55H and the listed emission calibration/tear tag requirements. This part cross-references Ford F7PF12A650BTA and Mazda ZZPX18881B for the same application.

Common Problems This ECM Can Address

• No-start or intermittent start concerns related to ECM failure
• Driveability issues caused by faulty engine management signals
• Check engine light conditions tied to control module faults
• Communication or calibration mismatch problems after module replacement
• Intermittent electrical faults caused by damaged internal solder joints

Installation Notes and Tips

Before replacing the original ECM or PCM, verify the root cause of the failure. Common causes include poor grounds, power supply issues, damaged wiring harnesses, and shorted solenoids or relays. Chrysler PCM units with a V suffix require VIN programming, and some Ford vehicles may require a PATS reset; confirm the exact procedure for your application. For GM vehicles, Passlock or Passkey/VATS relearn steps may be required after module replacement. Verify the Ford engineering ID number on the original module and match it to the correct Cardone part number before installation.

Quality Assurance

Each Cardone remanufactured electronic and powertrain control module is tested with automated computer equipment or bench-tested, depending on application, and then validated on vehicle for durability and performance. The remanufacturing process includes re-soldering or replacement of critical components at Cardone’s Philadelphia manufacturing plant to help ensure dependable operation.