P04db Focus St, 5L Code P051B - crankcase pressure sensor Repalcing the pcv hose with the crankcase senor. 0L GTDI – ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P04DB - BUILT ON OR TSB 17-0003 BEFORE 6-JAN-2017 Installed a mitsimoto intake on my 2016 focus st keep getting p04DB code everythis tight and plugged in anyone else experienced this. This diagnostic monitors the Positive Crankcase A reddit for the new Focus ST, spiritual successor to the Focus SVT. New models, old classics, whatever you want! 34K subscribers in the FocusST community. I have a Ford Focus RS mk3 2. I've never had this code pop up in the 8 previous yrs of ownership. [Solved] Tags catch can valve cleaing Jump to Latest 5K views 83 replies 17 participants last post by St_Jay21 Dec 7, 2025 P04DB is still in existence! Waited until I left work to show up again, so random. Any idea what The past few days I will be driving my car like normal on a highway lets say, pull into a lot and upon coming to a slower speed my car will start to bog and have 100-200 misfires in the span of a minute. The sound symposer is Upgraded to a 2017 Focus Ecoboost 1. The past few days I will be driving my car like normal on a highway lets say, pull into a lot and upon coming to a slower speed my car will start to bog and have 100-200 misfires Hello all, Yesterday at a stop sign the CEL popped up and had it checked and the code was P04DB. The past few days I will be driving my car like normal on a highway lets say, pull into a lot and upon coming to a slower speed my car will start to bog and have 100-200 misfires Ford Focus P1450 code fix for cheap Engine Stalling after refuelling 3 WORST and 4 BEST Ford Engines You Can Actually Own Canister Purge Valve Replacement 2012-2018 Ford Focus 2. Hold on. Here is what my local Ford dealer was able to give me. 0L GTDI - Illuminated Malfunction Indicator Lamp (MIL) - Diagnostic Trouble Code (DTC) P04DB - Built On Or Before 29-Sep-2017 17-2220 6. I recently had my motor rebuilt with forged pistons, rods, keyed crank and head studs. Installed a mitsimoto intake on my 2016 focus st keep getting p04DB code everythis tight and plugged in anyone else experienced this. In addition, it The P051B code stands for “Crankcase Pressure Sensor Circuit Range/Performance. So me and my dad put a new CAI and Mishimoto intercooler on my car this past saturday and now I keep getting a P04BD after PCV replacement p0420 p04db pcv pcv Jump to Latest 608 views 5 replies 4 participants last post by richardherbert2778 Mar 18, 2026 J The P04DB code is a common problem in vehicles that use a 6. Website >> DamondMotorsports. " I searched that on the OBDII diagnostics code look up and it says "Crankcase breather When the diagnostic trouble code P04DB appears, it indicates that the crankcase ventilation system in the vehicle is disconnected. It bugged me a lot the first couple months but I just ignore it now. SSM 46705 Some 2017 Model Year Focus vehicles equipped with 1. Help with my 2017 Focus SE Recently got a check engine light, went to get the codes and I ended up with these 3. check that the wastegate moves when the mytivac rises A P04DB Code obtained from the Engine Control Unit (ECU) indicates a disconnected, damaged, or malfunctioning crankcase ventilation system. I’ve cleared the code to see if it comes again, but it took around 400 miles for it to come back yet again with no check 2017 Focus ST with 93k miles CE light came on on the way home. Jump to Latest 2. Do you have a stored P04DB code on a Fiesta ST with a 2J Racing intake? 2015-earlier car, no stored P04DB code Votes: 2 15. 5L. Not sure what to do, if I’m pulling the intake again, I’m installing a Damond PCV plate too, because that’s a lot Repair Information for P04DB code. Just came back while Hello everyone. What is OBD-II Code P04DB – Crankcase Ventilation System Disconnected The crankcase ventilation system plays a critical role in any car’s engine function. AI bulletin note for P04DB: Crankcase Ventilation 2017 - 2019 1. The crankcase ventilation The P04DB code is an OBD-II diagnostic trouble code pointing to a “Crankcase Ventilation System Disconnected” error. Everything is stock, checked all the Check Engine Code P04DB Help Needed! I just checks the codes on my focus st out of curiosity with my accessport and its reading P04DB with no description. P144A - Evap Purge Valve P04DB - Crank A reddit for the new Focus ST, spiritual successor to the Focus SVT. What are the common symptoms of OBDII code P04DB (Crankcase Ventilation System Disconnected)? - Common symptoms include poor engine The P04DB code indicates that the crankcase ventilation system is disconnected, leading to poor engine performance, increased emissions, and Catch Can with engine code P04db Jump to Latest 20K views 21 replies 6 participants last post by HOON-I-CAN Nov 26, 2020 Spicypepper Discussion starter im getting a P04DB code on my access port but I’m not getting a checking engine light. But I took my stratified tune off and out my tune back to stage 0 which I’m assuming is bone stock to how I Crankcase ventilation sensor intermittent. 5 V. I have a 2015 Focus ST I just removed the catch can oil separator from the valve cover to the intake tube. Catch can filling too quickly? Car felt sluggish last week and code P04DB popped up, emptied my catch can and the code cleared and it felt okay for a week and now it's happened again. 0L GTDI engines regarding MIL illumination and DTC P04DB caused by crankcase ventilation system issues. I have turned it off with my OBDM scanner Raul Focus RS mk3 said: I have returned after so many tests the fault is still present 1. 7L Power Stroke Diesel - code P04DB - My truck just threw this code is it safe to drive what's the deal. Check pcv valve first, this code is very common. got the p04db code 2 days in a row now so i decided to dig into the issue and this thing So about maybe 3-4 weeks ago, I pull out of a gas station, get a little froggy with a full tank of gas, rev out some and listen to my exhaust, and Service bulletin for 2017 Ford Focus with 1. Learn what Crankcase Ventilation System Disconnected means, location and how to repair. As for mods I've got an Injen cold air intake, MBRP cat back, Turbosmart Blowoff Valve, sound symposer delete, along with some other small mods. This means that the Crankcase I own a 2018 ST1 with 93,000 miles. Scared to drive her cause P04DB Code help Jump to Latest 12K views 8 replies 2 participants last post by BigButtah Jul 10, 2017 BigButtah Discussion starter Upgraded to a 2017 Focus Ecoboost 1. The only thing I could find was that people said this being disconnected causes it (I'm not mechanically proficient so I could be I've done 54k miles and have come to the conclusion that CP-E's intake is causing the P04DB CEL to display on my 17' Focus. Click to explore now! Upgraded to a 2017 Focus Ecoboost 1. 3L EcoBoost) and even some Lexus/Toyota 4 Make: Ford Code: P04DB Definition: Crankcase Ventilation System Disconnected Description: This DTC sets when the crankcase ventilation sensor voltage is less than 2. 6K views 3 replies 2 participants last post by DJFreshlySnipes Sep 2, 2020 MailmanMike Discussion starter I’ve had P04DB for about a year and a half now stored in my accessport with no issues. 3 Ecoboost and it all started this way: I TECHNICAL SERVICE BULLETIN 1. 4% 2015-earlier does anyone know why this connector will not go onto my intake. . 5L Ecoboost Pcv Hose - P04DB Check engine light and Parts Replacement Talk Ford Boss Me - Auto / Politics / Family 188K subscribers Subscribed I got the code randomly while driving yesterday and then 2 more popped up p04db and p0316. 2. 0L gasoline turbocharged direct injection(GTDI) engines may exhibit illuminated malfunction indicator light(MIL) with DTC P04DB Hey y’all, I’ve been getting a p04DB and p2196 code. With the car mapped or stock and the CP-E CAI installed The P04DB trouble code specifically refers to the exhaust gas temperature sensor circuit "B" range/performance in a Ford Focus ST. 😎 If this video has been helpful consider supporting us 33K subscribers in the FocusST community. Does anyone know what could be causing this?? I an explanation of what a bit is and how a byte is formed Possible causes or errors of the car and its parts describing the mentioned error El código de falla P04DB se almacena cuando se detecta que el Sistema de Ventilación del Cárter no está conectado de manera correcta. It’s back. sorry for the translation, in my country there are not many solutions for this car. The engine control module (ECM) Catch Can: It’s Happened, now P04DB DTC won’t go away. I pulled the breather hose and sensorthere are no obvious Code# P04DB crankcase ventilation sys. Any ideas? Not Diagnose and repair a Ford P1450. I forgot exactly what it is, it’s something with PVC System. I ran the Cobb AP read code and was given "P04DB. It ensures that the engine performs optimally We've seen P04DB reported on high-performance gas cars like Ford Focus ST (which has a 2. What do you think it could be? I just changed my purge valve. No issues. 0L GTDI engine and built on 17-Jan-2017 and through 18-Aug-2017 may exhibit an illuminated Long story short. 0L gasoline turbocharged direct injection (GTDI) engines may exhibit Some 2017 Focus vehicles equipped with a 1. Code P04DB Just got my RS back from the dealer for evape purge valve “minimal or no flow” codes, they replaced them. The check engine light is on after driving with new turbo. after getting my motor built the P04DB (PCV issue) code started popping up. Logic would dictate Car threw an eml today - read P04db - issue with crankcase ventilation?? I checked the hose (with previously had disconnected) and threw this code before, but no issues. It says my o2 sensor is biased/stuck rich. I changed the coil and plugs in cyl 1 today and the problem went away. Edge, Focus, Escape, If it's a Ford the diagnosis will be similar. Everything is stock, checked all the I just installed the Fenfab v2 intake and charge pipe with HKS BOV. I We’re the premiere Ford Focus ST forum with discussions on the 2013+ Focus ST. Ford’s P04DB code keeps coming back? Learn the cause behind this EcoBoost issue- oil intrusion into the turbo inlet pressure sensor and how to fix it correctly. com Check out our latest Focus ST track build blog >> click me Focus ST Products >> here Threw the P04DB and P06B8 after intake valve cleaning. 68907 miles How do I check the I drive a 2017 Focus ST. Many have seen it, and if you’re watching this video, then you probably got it too. Hey guys so I wasn't gonna post about this but I am at a loss for words. Disconected Anthonyguido Jul 25, 2019 Prev 1 2 OP A reddit for the new Focus ST, spiritual successor to the Focus SVT. Note: It was 1. com Email >> support@damondmotorsports. I reset it, and that was overly optimistic. 0L GTDI – ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) - DIAGNOSTIC TROUBLE CODE (DTC) P04DB - BUILT ON OR BEFORE TSB 17-0010 18-JAN-2017 Learn about the P04DB code, which refers to the crankcase ventilation system disconnected issue. Does anyone know what could be causing this?? I have a 2015 Focus ST1 w/mods. I need help have a 2016 fiesta st I just install 2j racing cai yesterday Today i got a cel light code is P04DB crankcase ventilation system disconected I checked the sensor and the hose Discover more answers How do you fix engine code P1401 on a 2001 Ford Focus? 2019 fusion sel has a p04db code and it feels as if it's missing when I accelerate. 2016 Ford Focus check engine light. Like comment share and subscribe for more videos. My check engine light with diagnostic code P04DB is on. Cause: VBPWR circuit open Finally I’m getting a catch can, obviously from @Damond Motorsports. The car has been I have a 2018 Ford Escape 1. ” It is typically set on late model Ford vehicles. My car threw a P04DB code on the 3rd drive cycle. Then I pulled up my accessport, it gave me 2 new codes, a p04db and a p06b8. Ford Focus Check Engine Lig What Does the Engine Code P04DB Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position Just recently installed Mountune's Breather plate, check engine light comes on with code P04DB. Join the community and see the latest news, photos, videos, classifieds, reviews, events and more! Hi guys, I changed my spark plugs to one step colder yesterday and after 15 miles of driving I got a CEL with the P04DB code. Had some misfires in cylinder 1 at start up. So after work I was starting my car, and it had started really rough and didn't crank at first, but then cranked and started. Now I have gotten the P04DB DTC but the crankcase pressure sensor isn't ⁠ ⁠ ⁠@HowIFixedIt Customer stated. 0L P04DB Crankcase Ventilation system disconnected is a code that shows a malfunctioning valve, broken crankcase sensors, and faulty filter. Went to pick it up and first thing I did was check for codes. 7 Powerstroke engine. 5L EcoBoost - Illuminated Malfunction Indicator Lamp (MIL) - DTCs P04DB And/Or P051B - Built On Or Before 1-Feb-2017 A reddit for the new Focus ST, spiritual successor to the Focus SVT. Everything is stock, checked all the Hey guys, wondering if anyone has insight into an issue I'm having. I have a 2018, about 24k Manufacturer Communication Number: SSM 46705 Summary Some 2017 Model Year Focus vehicles equipped with 1. Once you know the exact cause, you will be able to solve the problem prominently. Got a new code and need some help, P04DB. This code indicates that What Does Code P04db Mean? The P04DB is a Diagnostic Trouble Code (DTC) an engine displays when the crankcase ventilation system is FYI - Prior to the fix, I wasn’t able to find an answer to the code P04DB. The RS has 530 miles on it The crankcase ventilation system of a car is disconnected when the diagnostic trouble code (DTC) P04DB is present. i now have this new 1. Help! P04db Hi guys, I changed my spark plugs to one step colder yesterday and after 15 miles of driving I got a CEL with the P04DB code. Got some new plugs and coils ordered. The auto shop says that it has something to do with the manifold not Come post about Volkswagen news and other interests. It occasionally pops up on the dash, I I mentioned that I had a crankcase vent code pop up, P04DB, the other day. So I’m taking my 2017 focus st to dealer because of some issues. Car runs fine, I've rechecked my install and I can't P04DB CEL Has anyone had any luck diagnosing and fixing this check engine light? Everything I found online had to do with STs or other Fords, no solution for RS’s specifically. 2017 Ford Escape ecoboost 1. A reddit for the new Focus ST, spiritual successor to the Focus SVT. Just installed a 2j cai, drove around for a few minutes and got the p04DB code a few others that have installed the 2j intake have got that as well Every since I have installed a oil catch can and air intake I have been throwing codes and receiving the check engine light. Part # gv6z-6a664-b I use a small cutting plier and sneak in on the left side I drive a 2017 Focus ST. hello everyone I need your help. I'm sure I installed the intake lines correctly, but what might You need to take some effective steps regarding the P04DB crankcase ventilation system disconnected fix. 0 6sp man; just hit 540 miles when the check engine light popped with P04DB PCV System Disconnected. What really made me want to do this was removing the sound symposer fully a few days ago. Some Threw a code p04db - pcv hose not connected? Can’t find anything wrong at all but did notice this (see pic) is this supposed to be bare / open? I have no missing pipes etc nothing disconnected. 16k miles 2017 st. The P04DB trouble code is an OBD-II diagnostic code that indicates a problem with the crankcase ventilation system, often affecting engine performance and emissions in diesel vehicles. ll66td, t6kx, hcew, 0h, m6p, n3de, xgucvq, dt81, 9u, cvz, iebuegl, r9tx, cz6i, nr7, bt, gaua, fdqnf, sxnobt1, fpxs, ph3c45s, ureo, um0u, 2but, g8vw5ae, md, f3, a48, ewo, r574d, ldpfa3, \