no power, fearing the worst
I put a bullydog on the fly programmer on last Friday. I used it mostly in tow/economy. Yesterday I notice low power at bottom end low rpm's and a lot of black smoke but as soon as it tached up and started boosting it went away. Today I went out and cranked up and almost nothing happens when I press the excellerator power wise. I have a lot of smoke and it will tach on a little above idle. I removed the bullydog and put my stock program back on but no change. Any thoughts? oh yeah '06 F-350 ,lwb, single tire rear end, 4wd. 67,000 miles.