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macdaddy

Ecm failure!

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macdaddy

What makes an ecm go bad? Down at Norris for a great weekend...got boat off trailer, parked at the dock ...and then no ecm reading for 25 seconds... At least it was not out in a cove or in the midfle of the lake. Paddled it down to ramp and cranked it up on the trailer... Rented a boat for 1 day. Needless to say, pretty tough weekend and going to be an expensive fix I think.

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TallRedRider

I had an ECM supposedly go bad on me. Not sure what causes it. Too bad, I used to keep the old one for a spare, but it went with the new owner.

THey at least gave me the old one back, I plugged it in and found it to be working perfectly. The dealership gouged me $1200 for that. Hopefully yours is not that bad.

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Bozboat

What leads you to think the ECM is bad? (Just hoping it's something else)

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macdaddy

On the dash when you turn the key on, it states no ecm communication for 25 seconds.

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macdaddy

Tailored, what motor do you have in your boat? 8.1??

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justgary

TallRed, I think he's asking you.

This sure smacks of a power/ground issue to me.

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SmoothWaterMan

Just a bad or intermittent connection somewhere.

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TallRedRider

Tailored, what motor do you have in your boat? 8.1??

My Malibu had the 6.2. But the extra ECM is with its new owner. I suppose if they are interchangeable, he could send it to you. Although with the symptoms you describe, I am thinking it is more like a ground/power problem, not in the ECM itself.

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