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Old 26-01-2018, 16:59   #1
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injector open alarm

I have an open injector alarm on my smart engine monitor (2005 Searay 390 MY with twin 8.1 Mercs). I had it checked 6 months ago and the mechanic found nothing wrong and alarm went away. Today, it is back. It does the 2 beeps/min unless I run up over 3000rpm then it seems to beep rapidly. One shop I spoke with says I will need all new injectors and it is a large, expensive job. Not what I prefer to hear. Any ideas? Could it just be sticking and I can kick it :O) Can it be a loose wire or is it always bad?
Thanks,
Dan
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Old 27-01-2018, 08:51   #2
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Re: injector open alarm

Now, both engines will only rev up to 3600 rpm and the solid tone is alarming?
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Old 27-01-2018, 21:10   #3
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Re: injector open alarm

Check continuity across the terminals for the injector. If all OK, try an ultrasonic clean. I have done this with varied success in the past.
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