ok here we go. lol. got another TAC module and put in. Throttle works fine and getting no codes back from diagnostic.

But..... still no spark and no brooom broooom.

So now here's the break down. Good ground and power through pcm and engine. No codes returning back to pcm. Engine cranks fine. Called Jon at nelson and verified that was all the ground wires in harness and all is well. Coils are getting power and ground.

What's the chances of all 8 coils being bad? (I know with my luck its possible but....)

Any ideas??

I just can't wait to slap that ls1truck.com sticker on the back window. Its not on till I can drive it. lol.