On my new '86 GL the rear fuel injection electrical connectors on the
left and right side are extremely corroded.  There is even some blue
gunk it there, and I'm not sure what it is.

Strangely enough, the front FI electircal connectors on both sides are
ok, and just the back ones are corroded up.

Can someone please suggest the cause of this problem?  It will be fixed
via cleaning and/or replacement, however I want to get the the source of
the problem, not just fix the symptoms!  All suggestions are much
appreciated.

Thanks,
Shawn
'73 Campmobile
'86 Camper GL