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Yes, check out the wiring, Steve. I flew for quite a spell
with the incorrect wiring unable to figure out why none of the things that were
suppose to be happening with the modes seemed to make any difference.
Turns out I had one of the early wiring diagrams with the error which disabled
any mode beyond mode 2. Once I correct the wiring, then I could see the
differences changing the setting made.
Ed Anderson
----- Original Message -----
Sent: Wednesday, October 06, 2004 11:32
PM
Subject: [FlyRotary] Re: #$!%@$ temperatures still high
One more thing Steve, I can't remember how early or new your EC2
is. The early instructions had an error in the EC2 to PCM
connections. Corrected instruction were sent to all affected users.
The version in error showed pin 10 on EC2 going to pin 10 on the
PCM. Check this out and make sure it's not in error.
Tracy
----- Original Message -----
Sent: Wednesday, October 06, 2004 7:01
PM
Subject: [FlyRotary] Re: #$!%@$ temperatures still
high
Tracy,
You're right about my misunderstanding
of mode 1. That will probably resolve allot of it. I've also
received other feedback on mode 3 being a fairly fine adjustment, so maybe I
just didn't push it enough times. I thought that I had read that it
would only take 3-4 hits though.
As far as the wiring goes, I double
checked them pin for pin when I wired it, using a helper and an
ohmmeter. I'm pretty sure that they are right, unless one has come
loose. Mode 1 definitely works, because I definitely saw a difference
when pressing the store button. I really haven't programmed any other
modes, except for 4 hits on mode 3. I really didn't see any
difference, but maybe I should try a few more pushes.
Steve
Steve, go back and read the instructions on Mode 1. The
operation is different than for mode 3. In mode 1 it does not make
any difference how many times you hit the store switch, only the position
of PGM (left) knob determines the correction value used when you hit the
store button. Also see Mode 9 which is similar to Mode 3. Know
the operations of the various modes by heart before tuning the EC2.
Remember that Mode 3 is a fairly fine adjustment. It takes
about 25 clicks on the store switch to run to the end of the range in
either direction.
If Mode 3 doesn't make any difference it means something isn't right
and you should stop everything and fix it. Do not taxi, do not fly,
do not pass go, you get the idea. I would suspect a wiring error in
the connections between EC2 and PCM panel. It is likely that NONE of
the programming modes are working based on your description of tuning
results.
Tracy
----- Original Message -----
Sent: Wednesday, October 06, 2004
7:30 AM
Subject: [FlyRotary] Re: #$!%@$ temperatures still
high
Tracy,
I have leaned mode 1 as far as it
would go. I can turn the mixture control to about 8-9 o'clock and
get the correct mixture. I tried mode 3, and it does;t seem to do
anything. While watching the air/ratio gauge at about 2000 RPM's,
left knob at 9 clicked the store, no change, clicked it 3-4 times
more, still no change. This was with the mixture knob at
about 9 also, so I could see any change on the LED bar graph of the
ratio gauge.
Mixture seems to be rich at every
setting, but better at higher RPMs. Lower RPMs are really
rich.
Steve
>SNIP< > I have a couple of other nagging
issues: > > 1) I seem to be running rich. I turned
the fuel pressure down > some (30 PSI > on my gauge (don't
know if it's accurate)). That helped, but running both > fuel
pumps makes the engine run very rich at full power. Turning off
one > pump increases power and smoothness. At an idle,
1000-2000 RMS, if I shut > off the main fuel pump, the engine
smoothes out, and gain a little rpm, > before running out of
fuel. > > 2) For whatever reason the "coil test" has
stopped working. I used to be > able to go to the "B"
controller, and do the coil test to check > the leading >
or trailing coils. That doesn't work, and if I turn it to off
(I'm using > the ignition switch), it keeps on running.
Used to kill the > engine before. > I'm not sure what this
is, and haven't really done any testing yet. > > Steve
Brooks (praying for cold weather) >> Homepage: http://www.flyrotary.com/>>
Archive: http://lancaironline.net/lists/flyrotary/List.htmlTo make any meaningful comments I'd need to know if you tried the
easiest things first. If the engine is running too rich, did you
turn down the mixture control? If so, what happened?
If that wasn't enough, did you reduce the injector flow rate? (mode
3). Is it rich at every throttle setting or just a few?
Sounds like something has gone bad with wiring on the coil test
issue. Sounds like you still have power to the injectors when
you turn the EC2 off causing it to continue running. Correct
this right away if so.
Tracy
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