I have a 2007 F-150 XLT with a 4.6L v8 with 83000 miles and need some help

My truck started running like crap today bad enough where I couldn't tow my boat home had to drive it home with out the boat. There no check engine light on but I did pull a code from my gryphon programer it was P1151 but when I got home and hooked the truck up to my innova 3150 scanner it had no codes. Wtf
I notice the truck doesn't sound the same like there's no power to it.

So I decided to change the fuel filter and check the gas seeing as it started happening a little while after I put gas this morning but that was not the problem gas and filter look good and still has the same problem after the fuel filter change

I tried resetting my truck back to stock setting on the gryphon but still the same thing and now I'm getting a code of P1000 on the gryphon and still no code on the innova also my exhaust smells a little funny. Anyone have any insight ion what could be my problem.

Thanks

 

Any suggestions

 

Vacuum leak maybe, or could be a bad O2 sensor, or just a dirty maf sensor wire, or a bad maf sensor.

 

Thanks for the reply I looked for hours for a vacuum leak and couldn't find one. I cleaned the Maf sensor and no change.
Any way to test the o2 sensor before I go replacing them.
Just baffles me that no check engine light came on.

 

Just changed the upstream O2 sensors and no change still the same.
Could a leaking intake gasket cause my problems.
It seems to only run rough after warm up.

 

A leaking intake manifold is a vacuum leak. Take a can of carb spray or starter fluid and with engine idling, lightly spray around vacuum hose connections and intake manifold to head joints. If you have a vacuum leak, you'll hear a change in engine running when that spray get's sucked in.

 

Will try and do that when I get home from work.
Is there any chance it could be a coil pack bad but not sending a code.
A friend of mine says it sounds like a could pack not working.
This thing is driving me nuts and I don't think the shop can take it in till next week.

 

When you "Google" Ford Code P1151 , you get a few different things. Here are some results to look at.

http://www.obd-codes.com/p1151-ford

http://engine-codes.com/p1151_ford.html

http://repairpal.com/have-a-p1151-co...accume-maf-198

 

Thanks tbear853 I think (and hope) I found the problem looks like the intake manifold is leaking coolant into number 7 and 8 spark plug area. I pulled the coil pack and they where wet on those 2 coil packs and I looked down at the spark plug and its soaked.
I heard that this is a common problem on the 4.6L fords I'm assuming that it's causing the coils packs to miss fire on those 2 cylinders and have a vacuum leak in the intake.

I hope this my problem anyone know what's a good brand intake that won't leak again.

Thanks