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Sensors are close to the manifolds. Stock position actually. I haven't reset the trims, I'll do that tomorrow and recheck everything for leaks. I finally have some oil for heat out in the shop so i...

Ok, new fuel pump and i built an intake leak tester. Found a big leak right behind the maf sensor. It seems to be running much better.

I'll have to see if i can add a line to my tester. I also have another fuel pump and may just throw it on and see if there is a change.
Thanks
Jeff

Ok, I think i got all the leaks sorted out. Anyone care to look at this log and see how it looks? It definitely runs better but is still lacking something.

I just check with a vacuum on reverse and i got leaks around the 02 sensors. I will fix and report back.
Sorry

I did verify the exhaust at least to the best of my ability, I'm wondering if the o2 sensors are wonky.
I agree with you on the fuel trims, The more posts i'm reading the more i'm starting to...

Ok, i adjusted my maf table by x1.1 and i think that helped a little. this is my latest log if anyone would like to take a look and give feed back.

So checked fuel pressure and it's constant 58-60. Checked again for vacuum leaks and haven't found any. This is a short log i took.

I'm afraid i don't have a gauge on it. I'll have to get one. I just went out and double checked for intake leaks and didn't find any. I have a sneaking suspicion that it's an exhaust leak. I'll check...

The engine is stock

I'm using the stock fuel rails and pressure regulator. But i may put in the corvette style filter/regulator just to make sure.

o2 sensors are installed but i have a feeling...

So, like many, many before me i was wondering if anyone would care to take a look at a log and tune and tell give me some advice on where to start or if things look messed up. this is a 5.3 out of a...