Spirit engine problem fixed....now the %&*^$ SX/4

[Marty Bricker <mbrickerusn@xxxxxxxxx>]

OK, latest update...it is electrical and not fuel. 
Checked spark from the coil and the plugs and it was
weak and then non-existant.  Pulled out the TSM and
did some T/S w fol results:
-ign coil primary circuit checks out ok
-coil checks out ok
-per TSM removed coil wire from distrib and
disconnected 4 wire connecter from ign control
unit(icu)...no spark as it said there should be...
-connected ohm meter btw D1 from icu and batt neg and
had 2.6 ohm reading which TSM says is bad ground (less
than .002 is acceptable).  
-I traced the D1 wire in the wire diagram and it goes
to the B1 connector from the distrib (this is the
ground wire)
-checked B1 to batt neg and it read 2.6 ohms
indicating a bad ground of the distrib
-removed the distrib and checked the area around the
distrib hole and the distrib hold down and it showed
good ground
-With distrib out of car rechecked continuity of B1
ground and it was good!
-reinstalled distrib and checked continuity numerous
times and it showed good
-attempted to start car and it fired right up
-let car warm up to reset timing, had timing reset and
dropped idle back to curb and car stalled...wouldn't
restart...same indications as original
-disconnected distrib connector and checked B1 and it
showed 2.6 ohms again indicating a bad ground!
It appears that engine heat is somehow causing the
ground to fail in the distrib.  Is this
possible/probable?  The distrib is a new/rebuilt unit
that has a lifetime warranty so I can take it back. 
Just wondering if I'm wasting time doing this.  Is
there another way to ground the distrib to check out
the theory?  Thanks.
Marty

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