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	Name:	CAT BOAT -
	Subject:	Logan Martin Nights......
	Date:	5/8/2010 12:12:26 PM

Just in case you did not get this post below because of the thread getting too long. >>>>>

Let me first say, the information below is based on a Merc MEFI ECU system (I believe yours will operate the same, not positive though. Most EFI systems operate similar). Your injectors may "Batch" fire! Meaning, 3 at the time (V-6 engine or 1/2 of the cylinders at the time). This would mean if you have an "open" or any circuit operating outside of normal parameters or ranges you loose 1/2 or your total # of cylinders. If indeed your fuel system is "sequential" (I hope I used the right word) the injector circuit should be "open" all the time, and "pulse" with a ground circuit! In otherwords, the HOT wire to the injector will be hot all the time to ALL the injectors, and each injector will pulse/fire from a mili-second ground pulse derived from throttle position and engine rpm. If your injector is stuck open from trash, or debris indeed you may have a bad injector (but not likely) signal. The best way to test this is to use "noid" lights and verify EXACTLY how your fuel delivery system works. Then simply take an ohm meter and get an ohm reading on each injector, WITHOUT THE WIRES PLUGGED INTO THE INJECTOR. Write the ohm reading down as it reads per cylinder. If you do indeed have a bad or malfunctioning injector it WILL show up with this test. If you have a signal problem from the system I will have to test that for you as you are not likely to have the resources available to do so. Please don't go buy an injector and throw at the problem unless you check to see first. Sorry for long post! What does it matter that someone working on the boat is sympathetic to your situation? Stop throwing money at the boat. Find out what is wrong with it and fix it. I'd be pissed if I were you. My .02 worth. If you want me to walk you through test call me. I'll help you.

Steve Northington
Cathouse Marine
334-657-4349 cell.

Other messages in this thread:

View Entire Thread

Logan Martin Nights...... - CAT BOAT - 5/8/2010 12:12:26 PM

Logan Martin Nights...... - GoneFishin - 5/8/2010 6:43:54 PM

Logan Martin Nights...... - CAT BOAT - 5/8/2010 7:55:30 PM

Logan Martin Nights...... - GoneFishin - 5/8/2010 9:06:42 PM

Logan Martin Nights...... - Loganmartinnights - 5/9/2010 8:04:43 AM

Logan Martin Nights...... - CAT BOAT - 5/9/2010 9:49:33 AM

Logan Martin Nights...... - Loganmartinnights - 5/9/2010 9:06:10 PM

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