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Max Online: 36273 @ 01/23/13 02:34 PM
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#11493698 - 03/22/16 01:27 PM DFW Yamaha mechanic..who can diagnose my motor today?
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
Vacation starts this weekend, and of course my motor crapped on me this past Sunday. I dropped my boat off at a shop yesterday, who promised they would have the boat diagnosed yesterday and back to me by Thursday, assuming they have parts. Well as of right now, they still haven't even looked at it. I understand that they are busy, just irritated that I was told the boat would at least be diagnosed by the end of the day yesterday. Starting to worry they will keep putting me off and ill be without my boat for our vacation. Are there any shops that could get to my issue right away?
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#11493764 - 03/22/16 02:07 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10902
Loc: Littlefield Tx & Lake A. H. US...
Explain the problem.
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#11493791 - 03/22/16 02:17 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
was running across the lake sunday in rough water for aprox 3 miles, let off the throttle a bit and suddenly lost power. it was like it was running on 2 cylinders. tested compression and everything is 110-116. starboard side not firing off. was told it could need a new ECU, but still dont know as they havent actually looked at it yet.
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#11493797 - 03/22/16 02:19 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
its obviously something that requires a computer diagnosis...
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#11493863 - 03/22/16 02:47 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
sorry, should have mentioned its a 250 hpdi
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#11494475 - 03/22/16 08:20 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10902
Loc: Littlefield Tx & Lake A. H. US...
I see a big problem here because the HPDI doesn`t fire on those 3 cylinders when at idle. You quite possibly could have a bad throttle sensor or a bad ground at the injector driver or ECU.
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” Remember what He has done and remember that He is not done yet! GOD IS GOOD

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#11494523 - 03/22/16 08:43 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
Interesting. It's still with them and I'm hoping they hooked it up and will have some info for me tomorrow. I hope you're right as far as it just being a ground. With the throttle engaged, it wasn't firing on those 3 sides. I thought that 4 cylinders ran while in nuetral?
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#11495686 - 03/23/16 11:02 AM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
Brazos Bass Cat Offline
TFF Team Angler

Registered: 04/17/06
Posts: 3731
Loc: Benbrook/Granbury/Whitney/Stil...
Gary, its looking like you were on point on the bad ground at the ECU. there's not enough voltage going to the ECU. should know more today.
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#11501430 - 03/25/16 06:36 PM Re: DFW Yamaha mechanic..who can diagnose my motor today? [Re: Brazos Bass Cat]
jwcromer Offline
Extreme Angler

Registered: 11/18/06
Posts: 2339
Loc: N. Richland Hills,Texas
Thanks Gary for all your help............

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