Coming in late but
a) Always disconnect the negative lead first and reconnect last.
b) Will not deal with Rock Auto. Problem service is non-existant.
c) Might try partsgeek.com Usually have a $15 off coupon
d) most parts houses make their profit on shipping (nonreturnable) fees
e) negative terminal large wire is supposed to go to a bolt on the head under the Ignition Control Module.
f) electrical problems can feel like almost anything. I strongly recommend the later ignition module. If still have Magnavox, gap at .045" NOT .060.
g) ED01 is the TPS reading. At idle, foot off gas it shout read .38-.42v
f) Service manuals are available from Bishko but are often less on eBay. Make sure to get the Final Edition. 89 is beige.