MEFI 5 Scan & Tune This cable works on cars

This cable works on cars that have the serial data pin on pin M or pin E of the GM 12 pin OBD1 ALDL connector

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There is a better way

This adapter allows a standard J1939 interface to connect to a CAT industrial Diagnostic Connector

MEFI 5 Scan & Tune This cable works on carsThe Complete MEFI5 ECM Solution Tuning, Data Logging, Diagnostics for MEFI5, 5A, 5B Our Marine EFI (MEFI) Scan & TuneTM system allows you to download the internal MEFI programming to your PC or laptop with our MEFI5burnTM program, change the operating parameters of the controller, and then reprogram the controller with your modifications. It also allows you to view all of your sensor systems in real time and log the data for later viewing, in addition