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OK fellas, I drained about a 1/2 quart of oil and that had no effect on the surging and stalling problem. This past weekend it got so bad that at every slow down to idle the engine would stall. Always started right back up. I was in the woods hunting and then the check engine light came on. Since I had my programmer with me, I checked the codes...P0611 (FICM Perf [I assume that means FICM performance but I cannot find that specific code in any manual) and P2285 (ICP Senor Cic Low). About 2 months ago, I had the truck in the shop for the P2285 code. That cost me $700 for a new ICP sensor and wire connector. I had no tools and the truck was running terrible so I unplugged the ICP sensor. As soon as I unplugged it, everything smoothed right out. The truck ran for 100 miles without a single surge or stall. Fuel economy went back up to 15 MPG on the overhead computer. When I got home, I plugged in the ICP again, used my tuner to clear the codes, and the truck has run fine since. I know it can't be this simple to fix, but does anyone know what happens if I just leave the ICP unplugged? Something with the ICP or the harness seems to be the real culprit and the truck ran great without it plugged in.
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96 F-250 7.3 L PSD, Super Cab 4x4. 6in Super Lift. 210K and going strong.
2004 F-350 6L 4x4, CC, DRW, 4.10 LS rear, ESOF, Westin Chrome & SS Brush Guard, Reese 16K hitch in bed, Fumoto valve, Air Lift airbags on the rear. OIF 03-04 and 05-07. Our troops are doing a great job. HOOAH!
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