Has anyone had any issues with upgrading there FICM to the 54v-58v ones? I was thinking about it but heard from someone there were issues with doing this. He didn't say what issues.

 

I have never ran one a buddy runs one but he just recently had a major engine malfunction. Yet to be determined but he was over fueling from the sound of it an injector tip must have came off. It hasn't been tore down yet. Beside running 10 more volts, and more amperage thru the wires and coils that were not designed for it. I'm not sure what other issues there could be.

 

I got one about 5 yrs ago, when it was thought to be a performance upgrade. Been running it ever since with no issues. Nice and steady 53v on the Scan Gauge.

 

Our recommendation is to stay with 48 volts. A properly rebuilt 48 volt FICM will deliver all the power (amps) that the injectors need during a cold start. Let me know if we can help you further. We have them in stock and ready to ship.

Ford 6.0 Powerstroke FICM Repair Service | Circuit Board Medics

 

It's a gimic. The root problem is alternator and batteries, a 58V FICM is like putting a bandaid on your arm when you leg is broken.

 

Wait, that doesn't work?

Looks like I've been doing it wrong all this time.

 

Are you sure there is more current going through the wires and coils? The FICM is designed with current limiting output resistors.


I do have a 58v FICM from Swamps Diesel, it came with the truck when I bought it 2 1/2 yrs ago. No problems with it so far, except the volts do drop some when it's real cold.


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Voltage = current * resistance. So, if voltage goes up, resistance stays the same, the current is actually going down depending on how the circuit board is actually working and controlled. So, on the power board side of the FICM, technically might not be a bad thing.

But, a 58 volt FICM power board should never be below 56 volts, I think if you are running in the 54 volt range there are either issues with the board, the batteries or alternator. If main volts are 12.8 starting and up to 13 or more after started, then I think the FICM is needing rebuild

 

If voltage goes up and resistance stays the same then current will go up, not down.

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In this case I believe the power supply is a current limiting output. So if the voltage is increased and the current and load remain the same there will be more power (watts) across the load.

I believe this is the advantage of a 58v FICM. The extra power is most beneficial during cold starts to prevent sticking spool valves. I don't think there is any benefits once the oil is at operating temperature.

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