Alright guys I am trying to figure out what happened.

Car is the one in my Sig, I did a dig pull 1st gear 6500, 2nd 6000 and got a big bang car shut off. When I tried to restart it nothing, it seems to try, then when giving it gas it will back fire what sounds to be through the intake almost.

I am leaking nothing, My Wideband was reading the fuel was good.

I have a Dynaspark Opti, I am looking up the warranty now but this would be the 3rd Opti in 3 months. The first to it killed AC Delco's blowing the rotor apart inside the Cap.

However since it just died and never restarted those other times I think its something else.

I will check the ICM and Coil just for the hell of it... but I think it seems like a timing issue... which makes me cringe that means the heads are probably holding bent valves... I just hope the pistons are ok... The motor has less than 19000 on it so this is more than a little upsetting.

Thoughts are greatly appreciated. I will be setting a plan and pulling it apart tomorrow.