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Old 08 November 2013, 13:43   #1
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Evinrude e-tec issues...

Ahhh. Help. I am out for the weekend. But......

I am having an issue with my etec 175!

When at WOT, or very high power and the trim is used either way the engine seems to missfire? While the pump is running / Any idea's - didn't have this fault on my last trip a few weeks ago?

Ta.
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Old 08 November 2013, 14:08   #2
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Quote:
Originally Posted by SteveHall View Post
Any idea's .

Yew nead a seekrit cowde


10 10 11

Wot yoov gott iz 101011

Inn uvver werds ther ar 3 wyres fromm de trimm pummper dat ar shawtin owt

thay ar shawtin owt wher thay gow thrue de lowir enjin cowel
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Old 08 November 2013, 18:42   #3
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So tomorrow I will check the cables from the trim pump... And see what happens.
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Old 08 November 2013, 18:58   #4
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Could the trim relays be pulling that much electric power as to cause the ECU that controls the spark to play up ?

If something like that I'd then guess the trim motor is pulling huge power from the battery/ charging circuit ?

I'm not sure how the etec electrics work - I'd be calling mike @ south coast marine in the morning for advice ....
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Old 08 November 2013, 19:01   #5
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Well I have the evdiag on me so will hook that up tomorrow. It's annoying as when I packed it away it's the first time I winterised it, and now taking it out I have problems!
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Old 08 November 2013, 19:06   #6
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or pulling power from the injectors ( via the ecu)? . if its fine with no trimming going on not much else it can be apart from plug spark ( timing or nor sparking) or injectors ?. I'd expect the injectors to give you a loss of power, rather than a misfire - but who knows what electricery is going on in there.

of course the misfire could be a symptom rather than the problem......
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Old 08 November 2013, 19:09   #7
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Well it runs fine if you don't trim, only at wot. At tick over trim is fine, at 3/4 throttle it's fine. Just WOT or high revs trimming either way causes what feels like a miss fire, the longer you trim the longer it lasts.
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Old 08 November 2013, 19:15   #8
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odd - I'd go for trim motor somehow pulling power/shorting the ECU ( which while at WOT the trim motors working hard with the load on the leg etc so may need more power?).

Could be as simple as loose trim wire or buggered relay ? ( hopefully)
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Old 08 November 2013, 19:21   #9
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Hope so PeterM. Let's see what evdiag brings...
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Old 09 November 2013, 05:46   #10
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New one on me that. When you hook up the laptop, try trimming in & out & watch the ignition & system voltages.
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