[V8] Spoke too soon

[Tom Laplante]

Well, I was psyched the Lago car was running better and better after 
running some gas/treatment thru it.  Took it up to Mt Baker last week 
and full throttle once again felt like full throttle. Still had a 
slightly rough idle, but was hoping more gas/treatment would burn off 
the carbon from driving around with loose plugs for years.

Took it to hardware store yesterday morning and when I went to restart 
it started then sounded rough, then totally odd, it ran up to 1500rpm, 
then died.  Today I decided to swap out what I thought were the cheap 
chinese flywheel sensors, but found OEM ones. Knowing I'd had them out 
before, dug thru folder and found a receipt from '04 from the dealer 
that I had purchased a speed sensor for $175 and only replaced that one 
because of cost(put it in reference hole).  So pulled out all the one's 
I had and tested them cold/with heatgun....Threw 2 of the 6 in garbage.  
Had 2 newer ones in holder from a parts car and I had them in in a 
record 45 min including jacking.  Ha.  Project was made easier as I 
remember doing that for first time in '04 and it took at least a day, so 
I anti siezed bolts and barely snugged them up and had it out in 
literally 5 min(took seemingly forever to get the connectors back 
in).Still no start.  Girlfriend came by and checked for spark and 
nothing.  Fuel mist was coming out of plug hole so it's just no spark.  
Gonna clean grounds(since its been sitting outside for awhile) and just 
for fun throw in another ECU since knee bolster is out before I get out 
the meter and start tracing electrical stuff.  Checked all fuses deemed 
worthy.  Car never has a code and I surprisingly get Hall sender code, 
but I've verified these cars can start/run with no hall, so confident 
that's not my no spark.  Anything easy I might be missing?  I love this 
car why?