Back in November of 2003 I was trying to talk
Tracy into something like this. It would be a 37 pin
D submin
male connector with a PC board attached and large
type terminal strips so all
one had to do was bare the wire, stick it in the
hole and tighten the
screw. Much easier to wire, check and trouble shoot
than soldering 37 tiny
wires on to 37 tiny sockets on the back of a D
submin connector.
No soldering skills needed. The rest of the
connections
could be crimp type. People size wire like is used
for wiring cars
16 or 18 gage instead of tiny 22 gage.
Mark, perhaps you can have some of these PC boards
made. Here is the
PC layout I did way back when.
BTW I am going to layout your wiring on a large flat
surface and
see if there is something mis wired to cause the
injectors
to be on all the time and the plugs not to fire.
At first I thought the connector was wired backwards
which is
a common mistake. Now I don't think so. I just think
one or two wires
are wrong.
Paul Lamar
Since I am now rewiring most of it I just thought of
another
advantage to a secondary PC board. Wires going to
the coils
for one example can be grouped into adjacent screw
type connectors
further removing the confusion. Another grouping
would be injector wires.
Should make wiring this computer ten times easier.
Paul Lamar
Paul,
Pleased to hear that I hadn't wired this backwards. I
triple-checked everything before sending but there was
always the chance I missed something.
In my notes I mentioned that I didn't wire up the
injector disconnect switch because I didn't think we
needed it for testing. If there was a mistake, it's
possible that I made it around these switches.
The other chance is the labelling on the wires going
to the injectors. That's where I would start first....
I can get some of these boards made up (I don't think
anyone etches their own these days) but I guess we'd
better check with Tracy first and see if he wants to
consider bundling this as part of the EC2 Kit. I
agree.. anything that cuts down on the wiring would be
a bonus.
Mark
I am going over everything as we speak. I am going to shorten up a few things
and change wire color here and there to fit the dyno set up
so you will probably have to do another harness to
fit your airplane. Keep reading. I'll go in with you on a
secondary pc board to sort all this out. Make it easier
to wire and less error prone.
Paul Lamar
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