Duval King Ranch

another thing I just noticed was the truck seems to have the slightest shudder while idling. I wonder if the PCV needs to be replaced

C3MAN

iTrader: (1)

Same thing to me. After a couple weeks the computer learned the new volume of air coming in and light went out.

TonyBen

Just had my oil changed at the dealer and I got this code. Looks like I need to check the dipstick!

Ecobeast2016

I’ve been battling this P04DB now for over a month. It came on during the first drive after installing my Whipple intercooler and Turbosmart Vee Port BOV. I also happened to change my spark plugs that day, if that matters. I reset the code every time it comes on, the truck is not learning anything new. It will come on randomly it seems… sometimes after the 3rd time driving, sometimes after the 6th. Could be after driving 40 miles or could be 250. I *think* it’s more prevalent when I’m in a higher boost (12-15 lbs). I’ve checked all of my vacuum lines, dipstick, oil cap, etc.

This is driving me up an ever-loving wall. Ideas?

I am running an S&B CAI and a Team RX dual catch can, along with AMS turbo inlet, Mishimoto hot and cold pipes, Whipple intercooler, Turbosmart BOV - I have other mods but these are all the things that I think could impact crankcase pressure. Most of them have been on the vehicle for years before this issue started happening.

2016, 2.7