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  1. I

    2003 lb7 keeps giving maf code.

    Don’t have the stock intake. K&N was on it when I bought it.
  2. I

    2003 lb7 keeps giving maf code.

    4” k&n intake. Cleanable cloth model.
  3. I

    2003 lb7 keeps giving maf code.

    Had it tuned after and spoke to the tuner he suggested wiring problem but I can’t find anything wrong there. I have a device that reads the flow and can’t see that as the problem.
  4. I

    2003 lb7 keeps giving maf code.

    Recently blocked the egr and removed the vacuum pump and intake heater. Been getting maf code since. New sensor. Same deal. Only throws the code when I start it. Pulling 53-56 g/s flow at idle. This is driving me nuts having to reset the light every time I start my pickup.
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