Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
Even when flashing ECM with Centurion it has a jump for hooking up 12 volt power.
When Ford flash the TCM on ford cars and truck they test the battery first and will not do the flash if the battery does not pass.