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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
Tue, August 31st, 2010, 05:08 PM
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IMHO I think it would be best to go back to 87 octane, or try the 93 octane tune to see if it happens again. If it doesn't then you are probably going to be fine with a custom tune, but if it does I would get the problem fixed before possibly making it worse by doing a custom tune. just my 2 cents
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#2
Tue, August 31st, 2010, 08:16 PM
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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
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#3
Wed, September 1st, 2010, 11:01 AM
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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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