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ECU problem

P

polo0989

Member
Messages
4
Reaction score
0
Points
10
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
23
I have a 2004 AR 230 Yamaha jet boat, I have to replace the ecu’s in both engines, I removed the ECU(with the old ECU removed) the engine cranks. once I add a new ECU the engine does not crank over(I thought maybe I had a bad ECU) I reinstalled the old ECU and the engine still does not turn over. I removed the ECU completely in the engine cranks.

any suggestions on why this is happening.
 
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