Marelliplex Problem Revisited

[Robert_A_Brady@domain.elided (Robert A Brady)]

A couple of weeks ago i sent a post about problems i was having with my 
marelliplex ignition.

i'm 90% sure that it was the ignition module that was the problem.  brian 
shorey sent me a spare ignition to play with.  when i swapped in his coil and 
module, the problems appeared to go away.  next, i swapped in my old coil, 
and the car still ran fine.  i never swapped in my old module to confirm that 
that's what the problem was, hence the 10% uncertainty.

since my coil was showing lower resistances than it should, and since the 
original style coils are getting harder to find, i opted to replace that as 
well.  fwiw, Bruce's Parts Bin had the original coils in stock (now made in 
Turkey instead of Italy).... thanks Bruce!

thanks to all of you who sent me suggestions.  after talking to the parts 
guys at my local NAPA, i was convinced that the module could not gradually 
fail..... John Fox wins the prize for suggesting that this module CAN degrade 
and cause weak spark instead of just causing no spark.  

thanks again, 

bob brady, dvaroc
'88 verde
'74 gtv

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