PCM: Powertrain Control Module: This controls all, engine plus transmission. So its sort of an ECU + Transmission module all in one ECM (Engine Control Module): Is supposedly to refer to the computer module that ONLY controls the engine For example the old Jeep with the 4.7 pre-hemi, had 2. One ECM for the engine and a secondary board for the transmission. Hemi 5.7 has only PCM, since, it has the ecu and the transmission in the same board.
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How to take off the connectors that are below the fuel rail?they are some type of long plastic with a wire connector.
Gents the PCM is the same ECM ?
PCM: Powertrain Control Module: This controls all, engine plus transmission. So its sort of an ECU + Transmission module all in one
ECM (Engine Control Module): Is supposedly to refer to the computer module that ONLY controls the engine
For example the old Jeep with the 4.7 pre-hemi, had 2. One ECM for the engine and a secondary board for the transmission. Hemi 5.7 has only PCM, since, it has the ecu and the transmission in the same board.
@@koryyyy great reply, now I have ram 1500 EcoDiesel 2022 , so what is there ?
Disconnect the battery terminals 1st !