Aerostar 4.0, changed coil, still has a persistant miss, ideas?

[Movin]

I have alldata too, lol. It makes stuff a lot more simpler than what it is.

They are really good, mine is so old it was originally put in with "floppies"
The Modis,the solaris and the old scanner all have Snap-on Troubleshooter
and having that data base can sure save time. I finally put alldata in a
big Lap top, sure helps on projects like this Aerostar.

[chrisofna]

Okie dokie, here is an update:

1. Tried a different computer, didn't help.
2. I can fire injector 2 (middle right, looking in engine bay) through the wire about 2 inches up from the plug.
3. It is definitely NOT firing with the computer. Oscilloscope proved that.
4. All cylinders have spark and compression.

My next test will be if I can fire the injector manually at the top of the harness where it plugs into. I feel I'm getting closer. At least I'm narrowing it down.

[91mcnasty]

That's always good!

[FestYboy]

do you have power to that injector?

^

[Movin]

All the way through the injector back to the splice? special order connector just got in for a repair here, $46.oo wow.

grounding computer side of this injector with key on should turn this injector
on and a few more.

repair could be as easy as cleaning connector..wiring in new connector.

[chrisofna]

Which connector is it?

[M3NTAL]

do you have power to that injector?

^

This ^

[chrisofna]

I have power to the injectors that are batch fired with it, lol.

[Movin]

Sure sounds like a connector or corrosion in injector pins problem.