P04DB - Crankcase Ventilation System Disconnected
Description: This DTC sets when the crankcase ventilation sensor voltage drops below 2.5 V
U.M.
P04DB - Crankcase Ventilation System DisconnectedRecently started getting the PO4DB CEL code, im running a Mishimoto 3" downpipe, CAI, Removed the resonator, a BOV and Bama tune
Well have you checked it yet to ensure it hasn't become disconnected? The first thing you want to do is check the obvious.Yes, I know what the code is, how do I fix it?