Ok...here's the deal.

Turbo/built block EM1

The car idles fine. Drives fine for about 5-10 minutes...then all hell breaks loose. The car starts missing/backfiring and it's impossible to give it the slightest throttle without major bucking/backfiring. It was running great, then I started having a studder in boost...now it's completely undriveable. All happened within about 100 miles.


The spark plugs are brand new NGK's...replaced 3 days ago hoping it would fix the problem
Wires are also brand new NGK's...same deal
Fuel filter maybe has 40 miles on it...also hoped that was the problem
Pump screen has about 40 miles on it...same deal

Dizzy is about 2000miles old...I'm not ruling it out...I think it may be the problem. (Distributor King replacement)

Wideband reads perfect most of the time during the hesitation and backfiring.

Does this sound like an ignitor problem? Maybe a coil?

The car isn't with me right now due to it's horrible behavior earlier today...so I can't test anything until I bring it back home from it's current resting place.

 

Thanks for the help...

Coil was bad...