Correct there is 4 wires....i ordered a denso today....we will see what happens then...


a thought....the cat was gutted when i got the truck.....there drilled like a 1" hole towards the rear of it........is it possible that if they didn't undo the exhaust to blow out the cat....that they plugged up the muffler and it is causing this problem?

 

Entirely possible.

 

At this point i am going to test fuel pressure. and put the new 02 sensor in.....if it still does it and fuel pressure is good then i will cut the exhaust in front of the muffler to see what happens....if it is that then it is time for a new muffler.....knowing my luck thats all it will be.

I will update with my findings soon.

 

UPDATE:

Okay now what i have done all ready.

New plugs (stock champion)
New wires (autolite)
New cap and rotor
I routed the wires per the tsb
I cleaned the IAC
Check that the TPS is working correct.
Removed the TB and cleaned totally. New gasket.
New upstream 02 sensor (Denso)
Cat converter was gutted allready.
Cut pipe in front of muffler to eliminate that it is clogged.
Tested fuel pressue ( about 46-47 key on not running. also the same running)
Pulled all 8 plugs(pictures to be added)
I found 1 broken vacuum line and fixed that. I haven't gone thru all the vacuums yet to look for leaks.

Any other ideas.

Runs very smooth untill it starts warming up. (maybe a couple minutes)

After it warms up it starts it's missing sound....if i give it alot of gas it goes sorta smooth.Once i let off at all it starts doing it again.

Again at any point i can put in neutral and rev to the moon if i wanted to.

 

can't upload other 4 plugs. 6 looks like 3 but the rest are the same.

 

I had that problem before. I was using a drop in K&N air filter. After a year of no difference on mileage and performance I put a wix air filter in. About a month later my truck started to run like that. I tried cleaning the IAC and it made no difference. I decided to replace it after a friend said to and BAMMM the truck was running smoothly again. I am not sure if that would be your problem but I would recommend it. Get it from your local dealership or online. Make sure that you put mopar and not some off brand. It should be around $65-$125.

 

Thanks...i guess it can't hurt at this point. what about maybe crank position sensor? Maybe not since it is fine cold.

 

any other suggestions?

 

Electrical sensor tend to screw up as they get warmer. I would check spark from the coil while the engine is cold, see what it looks like. Then, get it warmed up nicely, so it is doing it's tricks, and check spark from the coil again. If it looks different... might be a coil problem, if some are missing altogether, possible crank sensor.

I think there is a test you can do on the crank sensor..... checking resistance across the pins, might compare those cold/warm as well.

 

thanks back to it again.