Chris;
The first thing to do is refer to the pin assignments in
the manual and check wiring on the pins on the plugs. Start with pin 9 on
plug 3; that’s the 12v supply. Then grounds. IIRC; the display gets
powered from the connection to the AQM, so check pin 1, plug-4 (grnd) and check
for 5v on pin2 to the display or pin 8 out of the AQM box. Then go from
there.
Best of luck,
Al
-----Original
Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf
Of Christopher Barber
Sent: Sunday, June 24, 2007 5:49 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] ECU/EM upgraded...a couple of questions
I
got my ECU and EM back yesterday and installed the ECU. It was really nice
to
have the upgrade that allows diagnostic modes. Hit the button and you can
really
hear the injectors clicking as if you are at 3000 RPM's. Very
reassuring
The
engine started after only a couple of minutes the first time and then
started
easily after that. As a matter of fact, it is stopping the engine
that
has been curious. I will turn the fuel pump off but the engine will
continue
to run for several minutes after the pumps are off (I can still
kill
the system by flicking the coils/injectors off but I believe this can
lead
to flooding and is "bad form"). Actually, the engine really sound
nice
just
before it does stop due to fuel starvation....yeah, I think I am
running
really rich 'cause when I lean, it really smoothes out.
I
am having a another problem though which is really bugging me. I can't
seem
to get the EM (Engine Monitor) to come online. The screen remains
blank.
This is the same as was happening before I sent it and the ECU back
to
Tracy for upgrade. Tracy ok'ed the units, but my screen is still
blank.
It
seems to not be getting any power. I have checked and rechecked the
wires.
I do NOT have all the sensors hooked up yet, but it is my
understanding
that all you should need is power and the data in/data out and
you
should get some base readings.
I
was stupidly careful about having all power disconnected and made a
cursory
investigation as to the grounds before time ran out. Does the unit
have
an "on" switch that I am missing, or does it come up when ships power
is
applied?
Please,
what am I missing? I would really like to see what is actually
happening
in my engine. I would also feel ok to run it longer if the reading
seem
"normal"....or at least workable. But, until I can get the monitor up
the
engine tweaking is limited.
I
was only able to "play" with it a few minutes before I had to go home
and
go
to bed (4:30 am comes very early, and yes, I work
weekends.....but I am
off
tomorrow and Tuesday <yea>), so I still need to investigate. However,
anything
obvious that jumps out at y'all that could help is appreciated.
Thanks
again.
All
the best,
Chris
Christopher
Barber
Attorney
and Counselor at Law
5110
Bissonnet, No 418
Bellaire,
Texas 77401
Serving
the Needs of Senior Texans
281-464-LAWS
(5297)
281-754-4168
Fax
www.TexasAttorney.net
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