Filter housing.. Or maybe a slight leak from the pressure sensor
Black 04 LLY 6" Tuff Country EZ Ride. 35-12.50 20 Trail Graps, Moto Metal 955, Bilstein 5100's. AMP powerstep. 4" MBRP Turbo Back w/5" tip. pcv re-route, LBZ inlet and S&B, EFI Live! DSP5 powered by Edge insight CTS...EGR blocked. Viper remote start and alarm. Custom built bumper by CountryBoy2500, with 3000k HID's and Hella 500's. 5000k HID's in lows. Raptor lined rocker panels. Tinted to match and tow mirrors. Energy Suspension Poly bushings. Kenwood ddx371, 9 speaker J&L audio setup. LML manifold. Air Lift bags, 35 Gallon TransferFlow Tool box combo.