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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
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Going back to 87 octane gas is a good suggestion, but with the CAI, I'd stay away from the Level 3 tune until you get a custom tune designed for that combination.
Actually, though, with a commercial CAI, you should not be doing any WOT runs until you DO get a custom tune. Those things are not going to give your engine a correct A/F mixture at WOT and you risk causing damage due to the mixture being too lean, which could also cause a "miss". - Jack |
#2
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Yeah thats why i have been running the 87t for now. The problem ocurred way before the intake was installed and before i got on the forums and read about the gotts mod. Maybe the next tank ill fill up with 87 and see if the problem comes back. Any ideas of what may do it? Maybe a coil? Maybe a fuel filter?
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-Stu ![]() |
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