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P04DB

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
Anyone had this code before? Got it once a few weeks ago hauling a load of wood on the trailer down the road got it as soon as I was pulling out of the driveway. I got it again today empty heading home. I noticed this morning on the way to work my throttle seemed a little more lag than normal but just figured it was the cold fooling with it. I checked the crank case hose as suggested by another post on here and checked all my vacuum lines. I noticed at an idle if I take my oil cap off it seems to be a little bit of a positive pressure coming from it. Oil looked fine, 3k on it and looked fairly clean for what it is.
 

carlhenry

Well-Known Member
Nov 21, 2018
1,506
284
Truck Year
Not Listed
I thinh it is crankcase breather sensor but it was on early ecos and is no longer serviced
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
Yeah I read in another thread it’s discontinued. I checked the hose connections and it seems okay. Idk what the hell its doing. Might just do aem flash earlier than anticipated and tune and delete egr and change oil cooler for good luck. I’m wondering if my egr shit the bed again. It’s been 23k since previous owner did it at dealer.
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
The EGR is under recall and is covered under the extended warranty. Go get em!
I spoke with s/a at dealer he said since it’s been within 2 years of the first one it’s covered either way and the aem flash would cover whatever else it would likely be
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
I got to thinking about it... my last oil chance was 2-3k ago and I think I ended up with almost 12 quarts added. Wonder if I overfilled it or didn’t give it enough time to settle
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
Wanted to provide some update into my code. Since it’s saying it’s intermittent not immediate like others situations, I started retracing my steps. I found a setting in alfaobd that was something along the lines of performance shift enabled. I turned it on a few months ago and since then the code has come up twice. I noticed when driving my truck wouldn’t shift, instead it wanted to build more boost. I’m wondering if for some reason the sensors were thrown off from the ecm seeing as how the truck wasn’t coded from the factory that way. Drove it yesterday and seems to be shifting correctly now where as before around 40-50 mph I could hit the gas and it would almost slug until I hit the pedal more then it would shift. I’ll keep you updated!
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
Update


250 miles, 12 warmups and no cel or pending codes. I caused my own issue it appears 🤦🏻‍♂️
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
Update.

about 5k since I kept getting the code. I ended up resetting the transmission clutch values a few times and it’s seemed to resolve the issue!!
 

justin8789

New Member
Jun 28, 2020
3
1
Truck Year
2015
I am having the same problem with that code. Did that take care of it. It came on as soon as I put a oil catch can on and then I took it off and it seemed to be working until today and it came back on. How did you rest the trans clutch.
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
I used my sofaking tuner handheld device to reset the values. I haven’t had the code since I reset the values the second time. AlfaOBD should allow for reset also. I believe when I went from factory tires to 35” tires it threw my shift points off and allowed the engine to shift into second way too early and lugging the engine. Probably need to change my fluid and filter in the trans also but I’m waiting to finish up my garage so my fatass doesn’t have to deal with the change in the heat.
 

justin8789

New Member
Jun 28, 2020
3
1
Truck Year
2015
You think if I reset the ecu that would do it. I replace the trans fluid about 2 month ago. I have stock tires on the truck to. I hear ya I hate work in the heat it sucks.
 

Tremper126

Moderator
Staff member
Feb 15, 2019
960
347
Truck Year
2014
You’d need to reset tcm( trans control module) wonder if new fluids is making trans go haywire. Pay attention next time you take off, give it a light foot and listen to see if it’s shifting too soon and making motor lug. Mine did it bad when pulling trailer
 
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