Make sure they are COPPER (and I MEAN COPPER!) Plugs... do not put iridium, platinum or anything other than Copper Plugs in.

 

OK no leaks and she is really bad know can't go over 40mph the codes finally came up its po171 and po174 what's you think fuel pump?

 

You sir are in Limp mode.

Stop driving it unless you absolutely need to and check out these two links:

http://www.obd-codes.com/p0171

http://www.obd-codes.com/p0174

You need to replace O2 sensors (Upstream)

You might also be having a fuel pump or injector problem.

Also replace PCV valve and check for vacuum leaks.

 

OK first thing I just ran fuel pressure and its reading 15 psi at ideal that can't be good!!!

 

Nope definitely not good.

Replace the Fuel Pump.

 

OK when trying to read if any one had this problem I found 2 other forms started having the same problem but they never came back to say what fixed it so I will.... First IZERO Thank you so much for your time bud you chimed in every time I really appreciate the help!!!! In the end the problem was the fuel pump!! Very easy to do with a helper but not cheap 200$ but the truck runs like she is brand new!!

 

lol thats VERY cheap for a fuel pump... most shops charge like $500 for parts and labor and they end up screwing the job up half the time... lol

Make sure you reset the PCM so you get rid of all of that bad fuel trim "learning"... (Just remove the negative on the Battery and step on the brakes a few times and reconnect and off you go!)