electrical help request (no spark)

[Richard J. Andrews]

what about the ignition control module?
i forget where it's located but someone else can chime in..
Try the fuel pump relay too...
you sure it's not the ignition switch?

HTH!
rich
'86 4kq


>Car is an 86 4kq.  It quit while running.
>Diagnosis revieled very little (but some) spark.
>OK, I lied in the title, it does have a little.
>I have many test parts along with an 84 4kq to compare against.
>The weak spark will only jump ~ 5mm.
>I tried a test distributor with no change, verified good in 84 that will
>run.
>I tried a test ignition control unit with no change, verified good.
>I tried the coil from the 84 with no change.
>I checked voltage both at the coil and the ignition control unit.
>I ckecked ground from the ignition control unit.
>I disconnected the wire from the coil to the fuse box in case there was a
>short in the tach or something.  No change
>I disconnected the oxs computor as there is a wire from the ign control unit
>that goes to the oxs computer with no change, I verified that a car should
>ba able to produce spark with the oxs computer disconnected on the 84.  The
>84 had good spark with the oxs computer disconnected.
>I checked continuity on all the wires in the system.
>I am frustrated because I think I checked everything at least twice and
>still have very little spark.
>With a few connectors and a little wire, I think I could get spark out of my
>test parts easier than this car.
>Please help.  I do not know what to check next.
>
>    Dave G