Truck isnt getting spark anymore. im at the end of my rope lol

[Botlfed]

So im gonna tell the whole story and you guys tell me what you think.

I was getting ready to drop my trans pulled the DS bolts something came up and had to stop, few days later there was a pretty good ice storm coming so I go out to move the truck around as to get all the cars in the shop. Start up the truck drive into the yard hear a loud clunk and im like wtf was that I kill the truck and jump out, the effing drive shaft fell out cus I forgot about the bolts I removed, so truck wouldn't start back up it actually wouldn't do anything. Anyways I say F it cus I didn't have time to hassle with it. So after awhile I get the trans out, and the t case, hook the PRNDL back up and it cranks but wont start, its getting fuel but no spark. So I check all the fuses all good, change relays all good, check ny grounds, good, changed the crank pos sensor, changed the cam pos sensor, changed coil packs, maf, tb, pcm, MFNING SOB still wont fire, now please someone give me anotber idea! Lol

[Frenchy]

You're sure you checked all your grounds dude? When mine wasn't getting spark it was that one little ground, on the drivers side, bottom of the block.

[Botlfed]

Yea first place I checked but a ground wouldn't just quit all the sudden

[Oldspimp]

When you say you have fuel did you just check rail pressure or did you see if the injectors are pulsing? Can you crank it and see if a scanner reads rpms?

[Botlfed]

I pulled a plug and its not sparking fuel is to the rail.

[Botlfed]

Trans is still out btw prndl is hooked up though

[George C]

Light it on fire

[Botlfed]

Light it on fire

that aint no shit im almost to that point, so even though it is tuned, and I switched out PCMs to make sure I didn't fry one, is it possible that the vehicle theft system in the BCM is causing this, there is no security light on, im just asking should I do a security relearn even though vats is off

[Oldspimp]

You need to see if the computer is reading rpms, do the injectors pulse? That will give you a starting point. If the security light goes out with ignition on its fine.

[RS/SS 4.8]

Cant believe you didnt hook up a scanner first thing lol. Glad u got it running