in your case, the computer compares the O2 readings in time with the firing order. It sounds nuts, but that's what it does. Also, you have the rarer of the two exhaust packages...

 

You can have a bad cam/crank sensor. Double check the wiring, especially the engine grounds.

I'd be questioning the PCM with all those codes. Why did you change it in the first place?

 

I changed the pcm bcuz at the beginning of this nightmare it was just dying and stalling randomly and no codes were thrown until after 2weeks. Well when it would start id slap the pcm and it would start up or it would kill the truck if i slapped it while it was running. So i changed it and have changed it twice and i wouldn't think 2 new pcm's would be faulty and i checked wiring to the crank sensor would a front transmission seal leaking fluid on the flywheel which is slinging fluid all on the crank sensor be y its getting an intermittent loss of signal? I tested this theory with a magnet and fluid and when i covered the old crank sensor with fluid it would really stick to anything so was i testing that right?

 

on the jeeps, sometimes the PCM mounting screws get screwed in too tight and they ground on the mounting plate, or the chassis where they are not supposed to. And that causes lots of problems

 

Ok so how do u know to fix this

 

Ok so everyone else's attempts at suggestions was a flop anyone else have an idea on the problems Im having b4 i use this truck for target practise

 

There are times when it's wise to have a dealership diagnose an issue. Once you have the prognosis, then fix it yourself. Better than throwing money at it.

 

I have taken it to the dealership and they couldn't figure it out i mean what did i expect someone who changes parts doesn't know how engines really work.

 

well if they know there is a problem, it is up to them to figure it out. And it shouldn't be on your dime if their ignorance and stupidity is to blame.

when I worked at a ford dealer, we had a tool that we could plug into the OBD2 port, and gave us a graph of the output of every sensor. We used it alot to determine if O2's or fuel injectors were bad by graphing the injector duty cycle on top of the O2 voltages.