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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
Thu, October 13th, 2011, 02:57 PM
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A 2007 is not as problematic as the 04-05s. Go ahead and use the programmer, but we recommend using the Level 2 "Tow" tune when you do so. This tune is slightly richer, which will help mitigate any lean tendencies caused by your CAI. The Level 2 tune is actually a very good all around daily driver tune anyway. It's what I used before I got custom tunes.
- Jack
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 2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam 
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#2
Thu, October 13th, 2011, 03:17 PM
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It's seems like a load of bull until one understands air fuel ratios.....
Anytime a slot style maf is moved from its OEM transfer location there is a chance of either running lean or rich.....it all depends how it reads the air in its new position....
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