I was hoping for a little more info. Let me add something to this:
I brought it to the tuner last Saturday, and we saw on the dyno what I was feeling on the street. It was a power drop that coincided with a lean condition. He thought it was in the tune, and after a fresh re-tune, it didnt lean out on the dyno again. Then again, he had the key in the on position for about 5 mins each time he changed the tune, which gave the fuel pump time to build pressure in the line.
My thought is this. I have dropped the fuel level to below E on several occasions. I believe the pickup may be clogged. This makes sense to me because I can floor it one time, and it snaps to, and pulls hard like it's supposed to. Try it again right after that, and it feels lazy, then picks up. Just like it looked on the dyno. I believe that after I floor it once, and suck all the pressure out of the line, the pump isnt building up pressure fast enough for it to keep the A/F mixture right. So the next time I get on it, it's lean, just like it showed on the dyno. It also will run ****ty like that after I fill the tank up with fuel.
Any thoughts on that? I mean, I dont think the stock pump is putting out enough as it is (88 l/hr?), even if it was working right. I also cant HEAR the pump kick on when I turn the key. I used to hear it, but not any more. Thanks for any inputs.