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Wren mw54 eco r Fadec pump not working.

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Wren mw54 eco r Fadec pump not working.

Old 07-30-2021, 05:22 AM
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Default Wren mw54 eco r Fadec pump not working.

Turbine lovers!

I have a old kj66 with Wren mw54 eco r fadec unit.
Manual gas start ecu all by hand unit number MA-397
I would love to get the old machine back to running i put a 4cell battery everything starting up except the fuel pump.
The pump is only making al little buzz but is not turning.

What i already tried:
-different battery's connected.
-measured pump voltage from ecu unit its 5v
-put the pump directly on 3v its running good
-changend parameters in the ecu unit but the pump is still only buzzing

Does somebody had this same problem? i think its something in the driver circuit of the pump in the ecu unit.

Maybe somebody have the manual of this ecu?

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