Perhaps the cause of many problems, however, the broken wire was NOT broken two weeks ago when I rewired the ECU and got it running so well. I just happened to notice it right off yesterday (gee, what are the odds of me finding something on the first thing I happened to check. Guessin' that will be the last time<g>).
I had to walk away yesterday, take a breath and focused on some micro fill and sanding I needed to do. I at least FELT a bit productive in spite of the demoralizing impact. I hate the idea of sending the unit back to Tracy again. He may have had it more than I have.
I will play with the sanding stuff tonight and get back to the engine directly. I will be checking the MAP table first, but the NOP is what really concerns/bothers me. I am guessing the bad ground could have been the cause, however, the NOP did NOT go away after I found the bad ground. I fear it may have trashed my serial circuit again. Donno, just speculation at this point. <sigh> Trying to keep a stiff upper lip <g>
All the best,
Chris
Houston
Cpl. Christopher Barber, JD
Badge 330
Bellaire Police Department
5110 Jessamine
Bellaire, Texas 77401
713-668-0487
713-662-8289 fax
CBarber@BellairePolice.com
Chris,
I would be surprised if you didn't just solve a whole passel of problems
with your EC-2. There is not telling what that cut ground connection was
doing over the past. High resistance, intermittent, open..who knows.
Fixing this should make your EC-2 much more solid.
Bill B
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Christopher Barber
Sent: Sunday, July 26, 2009 2:08 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Just livid.....
Thanks guys. I wrote NOS...course, I meant NOP.
Hmmm, Al, I considered a second ground but was concerned that it may cause a
problem I would be unaware of. Another testament to my ignorance, but
learning and better everyday. I shall see what I can do.
I think I may have over crimped this particular connector. When I examined
it, it seemed more cut than crimped. Donno what caused that.
I use a ratchet crimper and have not had problems before, however, most of
my previous crimps were 20 gage and not 16, so I will check the tool and my
process.
There was no strain on this particular wire. It is the very short ground
Tracy recommend, IIRC, to be shorter than 12 inches. I relocated my ECU to
accommodate this instruction.
<sigh>
All the best,
Chris
Houston
Bob White wrote:
> I agree, also if the wire can vibrate, do something to restrain it
> better.
>
> Bob W.
>
> On Sat, 25 Jul 2009 23:12:25 -0500
> Dave <david.staten@gmail.com> wrote:
>
>
>> Sounds like some strain relief is in order.
>>
>> Al Wick wrote:
>>
>>> Oem solution for broken wire is brilliant. They use more than one
>>> wire for both ground and power. Huge improvement in reliability.
>>>
>>> -al wick
>>>
>>>
>>> I looked at the wires to the ECU and all was secure, EXCEPT, I
>>> notice my
>>> main (16gage) ground wire broke at the connector at the ECU.
>>> Repaired
>>> the wire.
>>>
>>>
>>>
>>>
>> --
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>
>
>
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