If you're sure
you're below the staging point, turning off the secondary switch should do
absolutely nothing.
Turning off the primary injector
switch results in engine faltering badly, almost as though it’s running on only
one of 3 rotors, changing mixture doesn’t seem to help, engine will die on 4-5
seconds.
If you're running
mismatched injectors (primaries one type, and secondaries another), then you can
expect a change in mixture when turning off the primary switch. The change
can be drastic enough to kill the engine. I used to have to turn the
mixture knob 180 degrees to compensate for the difference between the Mazda
550's and the MSD 52 lb (525)
injectors.
You've said that this
is all just like it was on the dyno, but did you actually turn off injectors
when it was on the
dyno?
I know it's not what
you want to hear, but since you tried the B controller with similar
results, I would bet you've got something wired wrong. I'd pay
particular attention to the injectors, and disable switches. I would
pull off the EC-2 connector, and the injector connectors, and use an ohmmeter to
make sure the injector signal pins go to the correct injectors. I'd also
verify that the injector power from the disable switches goes only to the proper
injectors. In other words, primary power only to the primary injectors,
and the same for secondary. Finally, with NO power being put on the EC-2
wiring, I'd ohm the pins of the plug for shorts. In other words, put one
lead of an ohmmeter on a pin of the plug, then touch the other lead to every pin
around that pin, particularly the ones next to it on the same row. It's
very easy to get a solder bridge between a couple pins, and that could cause
some very unpredictable behavior, depending on what gets shorted together.
Questions-
Does the cold start
switch function normally? Since this is used with the injector
disable switch, it could cause problems if it's not working
properly.
Have you tried
the disable switches above the staging point?
Good
luck,
Rusty (enjoying the
dry spell, since it will be 4 months before I get a new
roof)