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P3449 OBD-II Trouble Code: Cylinder l7 Deactivation/Intake Valve Control Circuit/Open
P3449 means there is an issue with the Engine Control Module via the intake valve due to low oil pressure, or faulty solenoid.

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Truck won't run like it used to
Hi, thanks for writing in. Believe it or not, this happens quite a bit when people swap OEM air filters to K&N or other products. It has nothing to do with the aftermarket part however. The P-0104 OBD-II error code...

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