Alternative To BMW DI module, Duramax FICM

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nmstec
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Alternative To BMW DI module, Duramax FICM

Post by nmstec »

It appears as though 2001-2004 6.6 LB7 Duramax used in silverados 2500HD & more, is basically the same, however with the addition of having 8 Cylinder control.

GM Part # 97720663
Bosch Part # 0281010014

Online they are ridiculous, but at my local junkyard im quoted $60 CAD. This may be a better option for me when working on DI stuff.

Who knows if this diesel FICM would still operate well enough with petrol DI?
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Abricos
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Re: Alternative To BMW DI module, Duramax FICM

Post by Abricos »

90,91 can bus
So you need car to sniff can-bus to start injector driver ...
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Re: Alternative To BMW DI module, Duramax FICM

Post by AndreyB »

nmstec wrote: ↑
Mon Jan 17, 2022 5:34 pm
 Who knows if this diesel FICM would still operate well enough with petrol DI?
Diesel DI is usually higher voltage right? I would be concerned that diesel injector peak/hold currents could be further away than BMW GDI settings.
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mck1117
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Re: Alternative To BMW DI module, Duramax FICM

Post by mck1117 »

AndreyB wrote: ↑
Mon Jan 17, 2022 6:43 pm
 Diesel DI is usually higher voltage right? I would be concerned that diesel injector peak/hold currents could be further away than BMW GDI settings.
Good chance this is the case - these may very possibly vaporize a GDI injector.
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nmstec
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Re: Alternative To BMW DI module, Duramax FICM

Post by nmstec »

Abricos wrote: ↑
Mon Jan 17, 2022 6:32 pm
 90,91 can bus
So you need car to sniff can-bus to start injector driver ...
No CanBus needed for this. But also easy, CANbus is my thing. CAN is only used for diagnostics as far as I recall, and itself takes no data in.
AndreyB wrote: ↑
Mon Jan 17, 2022 6:43 pm
nmstec wrote: ↑
Mon Jan 17, 2022 5:34 pm
 Who knows if this diesel FICM would still operate well enough with petrol DI?
Diesel DI is usually higher voltage right? I would be concerned that diesel injector peak/hold currents could be further away than BMW GDI settings.
This I am concerned about yes.


EDIT: Andrey dont kill me, I'll upload better schematics with proper names in a bit.
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FICM 2.pdf
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