Trying to figure out why my truck is giving me a lean condition on my DTC's ever since I installed my cold air intake.... Does anybody have some advice on this....I know other F 150 owners with Intakes and have no problems. Im think is because my intake was an early model when i bought the volant in 2004

 

Some CAI's cause a lean condition by allowing too much air flow and the fuel just doesn't keep up, 04' and 05'. Custom tune or change back to stock.