I suggest you take the time and read the sticky. There are more things to check and replace, not just the gasket.

 

Got spitting and what not gone ended up being a bad coil. but it still runs rich the o2 sensors still wont trip a code but anything else i unplug will. Can the pcm be bad but still let truck run

 

The O2's will only set a code if the PCM thinks they are bad. They could be lying thru their teeth, and the PCM wouldn't have a clue. Does it run better with the O2's unplugged?

 

i think i am having the same kinda problem. when i put the truck in gear it bogs down and a little bit of black smoke comes out the exhaust. and some times it dies on me when i put it in gear.

 

Runs same either way cat is also gutted im stumped theres only few more things i can change

 

Somethin' strange is goin' on there. Got a scanner? See what the pcm thinks engine temp is.

What year is the truck?

 

I have a scanner but its just a cheap one it doesnt do all the things like that when i found out heads was cracked it didnt even blow smoke at all it was all moisture mostly now it blows white blue and black when u get on it theres a nice smoke trail that followed me last night once i got spitting stopped i just dont know what else to do im tired of spending money on stuff that it didnt need and i cant afford to buy the hughs kit for intake most of my parts have came from napa cause i have a account with them dont have in cash

 

Compression check. If you are getting white smoke, you are burning coolant.

 

96 is year of truck