Merc 6.2L MPI with ECM-555Possibly, what engine/ecm are you looking at?
Here is a screen shot from my Diacom software, showing the engine hours on the ECM Data tab.
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Is your display from an ECM-555? I don't have engine hrs in my list.
Glad you got it sorted out.I called Rinda. For the ECM/PCM-555, you have to read the fault history to get the engine hours along with the breakdown of hours/rpm range.