The FI wiring version matters. Early 86 is very different in the relay
wiring than later 86. Hopefully you got the improved later version.

Excluding early 86, that buzzing relay normally gets it's coil power
from the ignition coil black wire. Looking at the wires to your coil,
are there 2 blacks into one side and 2 greens into the other?

Mark

Jeff Lincoln wrote:
> Thanks Mark - I appreciate the response. I figured e-mail would be a tough
> way to go about this but was hoping for some suggestions like yours to at
> least point me in some direction.
>
> Yes this is indeed on the '90 but the wiring harness is from an '86 if that
> matters (however all FI and wiring are the same as what was in there with
> the original engine). When I looked closely at those relays they were indeed
> exactly the same - I do not recall the numbers on them at the moment but
> they were identical.
>
> When the engine was out I did clean and remount the grounds you speak of -
> maybe I didn't do as good a job as I thought - I will revisit that.
>
>