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30ff Turbocharger Boost Pressure Too Low 535i models often face boost leaks and faulty turbocharger wastegate issues causing low boost pressure, Jul 12, 2021 · 30ff dme Turbo charge charge air pressure too low on Bmw 335i N54 X5M Boost Leak ProblemsXBimmers, The code is 30FF - DME: Turbocharger, charge air pressure too low What are the chances this is because of the boost solenoids? I have a 2007 335i e90 with 89k miles! Jan 18, 2023 · E90 N54 Turbo Charge-Air Pressure Too Low, If the same fault returns, then you can likely rule out the solenoids, , The article outlines troubleshooting steps, precautionary measures, and solutions to address TBPD to optimize engine reliability and performance in 2C6C: DME: Oxygen sensor 2 after catalytic converter: System check 2D22: DME: Absolute-pressure sensor, intake manifold: signal 30FF: DME: Turbocharger, boost pressure too low Holy crap! Just looking at that has me going "where do I start", Typical causes, in rough order of cost to fix, are: Vacuum line leak Pressure converter (vacuum solenoid) failure Intake system leak after the turbocharger (Hello, new intercooler) Turbocharger failure, Nov 18, 2019 · Hooked up my Creator C110 and got two fault codes: 30FF Charge-air pressure control, boost pressure too low 310B Charge-air pressure control 2, boost pressure too low No other codes, If you are looking for more detailed information about some of the N54 engine problems listed in this guide, check out our BMW N54 Common Problems Guide, Theres a thread in the DIY section on it, Code 30ff, but I have also check my air pips, I don't know if I am missing something, Aug 1, 2011 · This technical service bulletin provides troubleshooting steps for BMW vehicles with N54 engines that have entered failsafe mode and stored fault codes FC 3100, FC 30FE, and/or FC 30FF related to turbocharger boost pressure issues, Car was sustaining about 1, The time now is 07:03 AM, These 2 issues may cause misfire on almost all cylinders like presently stored, Too little pressure might not offer the desired power increase, while too much pressure can lead to engine knock, excessive wear, and potential failure, If you haven't already I would check your vacuum lines all over the place, and probably just replaced them for good Today, we get to the bottom of why my 335i isn't building boost by testing the N54 turbo wastegates! These are actuated by the "wastegate solenoids" which ar Oct 3, 2015 · reduced power light- DME 30FF turbo boost pressure too low, In this guide, we’ll break down common causes of low or high boost — tailored to different turbo systems, including wastegated turbos, VNT systems, position sensor-equipped systems, and fully electronic actuators, The time now is 04:58 PM, « Previous Thread Next Thread » HPFP Gone? Again? Codes: 2FBC & 30FF BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Please Help! 30FF Charging Pressure Control, Boost Pressure Too Low Thread Tools Search this Thread 06-30-2018, 08:31 PM # 1 Bimmerguy271 Registered 1 Rep 2 Posts Drives: E92 335i Join HPFP Gone? Again? Codes: 2FBC & 30FFAll times are GMT -5, Problem >>>CEL 30FF Turbo charger, charge too -air pressure too low, Stage 1 and stage 2+ will target different boost limit with second being higher, If you got this code, your N54 is not running enough boost or is running “underboost”, 8 bar in long, sustained acceleration (0 to 60 mph), I noticed that after early morning test drive my car by approximately 15-20 or 5-6 miles and when the engine gets hot or warm up the >>> CEL 30FF comes out, Today boost is going up to 12 psi and drops to around 11 And no half engine light has come on today as yet, 3 Bar, g, Pick up some 3, ), then those faults will be the Stage 1 and stage 2+ will target different boost limit with second being higher, What could be going on? 30ff Limp Mode Unsolvable? I've been chasing this 30ff underboost code since I've taken ownership of an '07 335xi at bone stock form, Possible issue with turbo A, I started to do some vacuum tests which showed a leakage fault on the rear boost controller , Clear codes before you drive off with them swapped, I swapped it out for a new Pierburg, That is why you weren't experiencing 30ff before, Ambient air pressure reading was around 14, This means that either you aren't making boost or that you are making boost, but it is leaking out, As was one of the MAP sensors (there are two, I don't recall which was replaced), After chasing vacuum lines, we found a pinched l Additional comment actions Definitely turbos if you don't have a huge boost leak, not cheap and don't go used since these early designs are junk and most likely you'll have the same problem, Sep 27, 2023 · 30fc codeBMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > BMW 1 Series Coupe/Convertible Forums > Coupe and Convertible General Discussion 30fc code So, the code remains unchanged at 30FF (Turbocharger, boost pressure too low), Location: USA iTrader: (0) Engine Malfunction: Code: 2AAF Appreciate 0 Tweet Quote 10-10-2018, 04:01 PM # 2 ensoniq New Member 1 Rep 12 Posts Drives: 335xi Join Date: Oct 2018 Location: USA iTrader: (0) Ok now another code also is showing: "30FF: turbocharger , boost pressure too low" Appreciate 0 Quote Bookmarks twitter Facebook Digg Google Thread Tools Search this ThreadNeed advise 30FF waste gate stuck my n54 is throwing 30FF (boost pressure too low) ,3100 (boost pressure control, deactivation) ,2A87 (exhaust vanos) , and 2C31 (O2 sensor emissions control) however, the 2C31 is not indicating which sensor is faulty, which they are saying is a "general code", Feb 13, 2020 · The car drive well no problems, but when I hit my leg hard on the gas pedal, suddenly I get a message "engine power reduced', car wont pull as normal, Could it be that my car is going into limp mode and giving me 0 boost because the fuel mixture is messed up due to the sensor/DME? Codes: 2CA7: DME: Oxygen Sensor Heater 2 Before Catalytic Converter: Function, Note: If a defective high pressure fuel pump or additional faults are found in the DME memory (e, I looked over the vac lines, all are visually good, Apr 14, 2023 · The 30FF code will usually read “ DME: Turbocharger, charge-air pressure too low “, 20CD misfire cylinder 1, Car drives fine until you start building boost and hit 4000 rpm's, then you get the *ding* engine malfunction reduced power warming that corresponds to a 30ff turbo pressure too low code, When you get this fault code, the specific language says, “30FF DME: Turbocharger; charge-air pressure too low, com | BMW X6 Forum X5 Forum > BMW X5 Forums > General BMW X5 (E70) and X5M Forum (2006-2013) X5M Boost Leak Problems On this car, there was a low power issue and a 30ff code stored under high load, Oct 28, 2018 · with codes: 30FF: turbocharger , boost pressure too low 2AAF: Fuel pump, plausibly found out the intake pipe? wasnt all the way in, that took care of 30FF code, Technicians are Location: USA iTrader: (0) Engine Malfunction: Code: 2AAF Appreciate 0 Tweet Quote 10-10-2018, 04:01 PM # 2 ensoniq New Member 1 Rep 12 Posts Drives: 335xi Join Date: Oct 2018 Location: USA iTrader: (0) Ok now another code also is showing: "30FF: turbocharger , boost pressure too low" Appreciate 0 Quote Bookmarks twitter Facebook Digg Google Aug 28, 2022 · Hello everyone my 2007 ml320 cdi when l try to accelerate harder like when overtaking it goes into limp mode sometimes with a ECL but sometimes without, A 'boost pressure too low' code often indicates leaks in the intercooler piping or vacuum lines, The document lists potential causes such as air induction or exhaust leaks, as well as guidance on checking the operation of the pop-off valves and measuring boost levels, If problem persists email your tuner for support, All codes occurred once, ” This code indicates that the engine control module (ECU) has detected a lower-than-expected boost pressure from the turbochargers, so now have these issues: under hard acceleration over around 4-5k+ Service Engine Soon light comes up and engine runs rough, after restart SES light goes away, The result Thread Tools Search this ThreadNeed advise 30FF waste gate stuck my n54 is throwing 30FF (boost pressure too low) ,3100 (boost pressure control, deactivation) ,2A87 (exhaust vanos) , and 2C31 (O2 sensor emissions control) however, the 2C31 is not indicating which sensor is faulty, which they are saying is a "general code", The time now is 02:08 AM, There are several potential causes of the 30ff code, including issues with the chargepipe Sep 16, 2012 · So Code 12543 (30FFxH) ‘Exhaust Fume Turbocharger Low Side’ They replaced the lower Intake Charge Pipe to Throttle body – the pipe was cracked Installed 13 71 7 590 305 – Charge air Induction tr Installed 13 71 7 565 965 – Hose Clamp Anyhow, covered under warranty Quick Navigation 1999+ X5, X6 (E53, E70, E71, F15, F16, G05, G06) Go Top Jun 24, 2023 · So it’s getting some boost around 6 psi not 21 psi, Aug 1, 2016 · 3100 Boost-pressure control, deactivation - Boost-pressure buildup prohibited 30FE Turbocharger, charge-air pressure too high 30FF Turbocharger, charge-air pressure too low - Charge-air pressure too low, But as soon at times wanted to Rempit a bit the error would come up, The car was in the workshop for 3 days until they discovered two small leak vacumm hoses, Small amount of wastegate rattle on start up and when the engine has a load on it, « Previous Thread Next Thread » Annoying 30FF - Low pressure side - Any input welcome Sep 1, 2021 · DME Code: 30FC Turbocharger, charge-air pressure too low: leak tightness Possible causes Boost leak: Leak tested the whole system with around 20psi, no leak Tested oem and aftermarket blowoffs Manifolds and CHRAs looks tight as well Too much backpressure/induction resistance Inspected cats and inlets with endoscope, everything seems fine How to fix BMW code: 30FF Exhaust Turbocharger Low-Press, The blog discusses Turbocharger Boost Pressure Deficiency (TBPD) in marine engines, explaining its impact on engine performance and efficiency, Sep 30, 2021 · What are the most common N54 engine problems? Read our guide and learn how to minimize the chances of costly engine failure on your 135i, 335i, or 535i! I would make sure the fuel pressure ( low & high ) is within specification, also that the turbocharger wastegate can be operated full range of motion and that there are no boost leaks on the charge air pressure side, Boost pressure forces more air into the engine - providing improved performance, It hits 6k RPM - I lose all boost pressure & I can feel the car lose power, Specifically, the code indicates that the charge-air pressure is too low, which can lead to reduced engine performance and potential damage to the engine, Potential causes include aftermarket parts that disrupt the air path, induction or exhaust leaks, vacuum hose issues, and wastegate or pop-off valve problems Your boost solenoids do work off of vacuum, but when those fail, it's usually a boost pressure too high fault, not low, I logged boost pressure using the Carly app - and managed to hit one peak slightly over 2 bar on the first run - better than any peak this year, Got 30ff code last night when driving normal merging on freeway then was only able to boost 8 psi which would drop down to 5, But this should not be affecting my fuel pump/car dying issue, Aug 1, 2011 · The document provides troubleshooting steps for vehicles displaying fault codes FC 3100, FC 30FE, and FC 30FF related to turbocharger boost issues, Boost pressure varies according to engine size, turbocharger design, and other factors, Mar 5, 2021 · -low pressure fuel sensor -oil pan gasket -water pump & thermostat -VRSF chargepipe w/ blowoff valve -dual cone intakes -a/c evaporator & expansion valve -boost solenoids- both of them -mishimoto oil catch can -just to note, all i have is a muffler delete done, stock downpipes, no tune, stock turbos, do have a fair amount of wastegate rattle, One time I had knocked the front turbo's vacuum line off and I could drive fine under 3500 rpms no problem but anything higher and it tripped 30FF, See dealer (warranty), 2CAB: DME: Oxygen Sensor 2 Before Catalytic Converter: Temperature, It is measured in bars or pounds per square inch (psi), Feb 20, 2020 · 29E1 Mixture Control 30FF Turbocharger, boost pressure too low 29D1 Combustion misfires, cylinder 5 29D2 Combustion misfires, cylinder 6 29CC Combustion misfires, several cylinders 29F4 Catalytic-converter conversion On the cold engine IDLE Rail Pressure was at 170,100 hPa When it warmed up IDLE dropped to ~50,000-51,000 hPa range Oct 28, 2018 · with codes: 30FF: turbocharger , boost pressure too low 2AAF: Fuel pump, plausibly found out the intake pipe? wasnt all the way in, that took care of 30FF code, any ideas? pbondar Jun 24, 2023 Troubleshooting Replies 11 Views 4K Oct 16, 2023 So, the code remains unchanged at 30FF (Turbocharger, boost pressure too low), Understanding BMW 30ff Code The BMW 30ff code is a diagnostic trouble code that indicates a problem with the turbocharger system in BMW vehicles, The time now is 02:55 PM, Turbo Diag N54 BMW low boost pressure 30FF siren Still looking for help on this, Please if any other inside on what to check? I also have 30BE injectors 30ff Limp Mode Unsolvable? I've been chasing this 30ff underboost code since I've taken ownership of an '07 335xi at bone stock form, ” If you receive this code, you know that the N54 engine in your BMW isn’t working as expected, « Previous Thread Next Thread » [SOLVED] 335i - No boost only when hot engine (30FF) Sep 16, 2012 · All times are GMT -5, Inspect all hoses for cracks or loose clamps, The time now is 04:14 AM, Jan 27, 2025 · P0299 code signifies a turbo underboost condition, We checked the intake manifold pressure at idle and under load, and noticed the intake manifold pressure didn’t change much, Note: If a defective high pressure fuel pump or additional faults are found in the DME memory Nov 29, 2021 · All times are GMT -5, I cleared them and went for a drive, Oct 10, 2018 · 30FF means you have low boost pressure, The time now is 12:09 PM, May 24, 2023 · Hello PLEASE HELP! I have a BMW 535i 2009 165,500 miles, It highlights the significance of TBPD, the components involved, and the potential causes, Symptoms, us My Yahoo! E90 N54 30FF Yellow Check Engine Light (turbo charger pressure too low) fix!I also had a lot of wastegate rattle/noise, Tried the "unplug a line from the canister" and Turbo Diag N54 BMW low boost pressure 30FF siren Still looking for help on this, However this was not the case, it was my wastegate rattling as a result of a boost/vacuum leak, Jun 19, 2020 · Picked the car up from my indie speedshop and the car still isnt making enough boost, I took it to my tame Indy / dyno guys, The problem can be vacuum leaks, EGR issues, a damaged turbo, or a problem with the boost pressure sensor, Apr 25, 2025 · Striking the right balance in turbo boost pressure is integral to maximizing engine performance while maintaining reliability and efficiency, icio, Current Error Codes Present: Aug 21, 2014 · ***61548; 30FE Turbocharger, charge-air pressure too high ***61548; 30FF Turbocharger, charge-air pressure too low - Charge-air pressure too low, Then I proceeded to check the codes, oddly enough, there was no 30FF code or any codes for that matter, These codes apply to the 135i, 1M, 335i, 535i, X6 and Z4 powered by the N54, BMW has stepped up and extended the warranty on the pressure converter for some vehicles, The service manager says this is too low, the minimum spec is 1, Nov 13, 2016 · N54 problemslowunder boost but NO codes, ) Turbo replacement is worse case senerio for this code but it is not the case most of the time, This lack of power can lead to sluggish performance and reduced fuel efficiency, After performing a vehicle scan and isolating fault code “30FF DME: Turbocharger, charge-air pressure too low,” we moved on to sensor readings and signals, 30FF: 30FF Exhaust fume turbocharger low side EXPLANATION: ECU boost under ECU Boost leak? Code thrown 30FFAll times are GMT -5, us My Yahoo! Apr 25, 2022 · Are you experiencing little to no boost power in your turbocharger? There’s a reason for that: here are the causes of low turbocharger boost pressure, Appreciate 0 Quote May 9, 2024 · In this post, we will cover several common fault codes for the BMW N54 twin-turbo engine, This issue is often related to boost pressure regulation, where the engine control module detects that the boost pressure is not within the desired range, X5M Ownership Difficulty: Reduced Power Engine MalfunctionXBimmers, I need a DIY turbo piping diagram so I can carefully follow and trace the leak, com | BMW X6 Forum X5 Forum > BMW X5 Forums > General BMW X5 (E70) and X5M Forum (2006-2013) X5M Ownership Difficulty: Reduced Power Engine Malfunction We would like to show you a description here but the site won’t allow us, The time now is 11:55 PM, they are proposing a wastegate adjustment low boost after downpipe install?? All times are GMT -5, Oct 31, 2018 · The most common causes of a boost pressure too low fault code is a broken charge pipe where it attaches to the throttle body, or a faulty boost pressure converter for the vacuum wastegate, Either way, swap your intake and exhaust Vanos solenoids first, then report back as to what you find, Appreciate 0 Quote May 19, 2023 · In this post, we will cover several common fault codes for the BMW N54 twin-turbo engine, Upon scanning this came out - 30 FF DME Error - Turbocharger, boost pressure too low, ???? 335xi sedan e90 engine problems mechanic turbo bmws Jump to Latest 3K views 2 replies 2 participants last post by Dykle1493 Jan 18, 2023 « Previous Thread Next Thread » 29CE, 2AAF Under Hard Acceleration Mar 2, 2021 · The codes that have been present since 2018 are: 2AAF Fuel pump, plausibility 30FF Turbocharger, charge-air pressure too low 2ABD Boost-pressure sensor, overrun The in tank fuel pump was replaced by the previous owner before I bought the car, 5mm silicone vaccuum line and do the rest, May 28, 2016 · A 30ff means that the boost pressure failed to meet the level requested from the ECU fast enough, Got up to highway speeds (60mph) then stepped on it forcing a downshift, 06K subscribers Like 30ff Limp Mode Unsolvable? All times are GMT -5, Oct 26, 2016 · FIX: Dealer it, 30ff Limp Mode Unsolvable? I've been chasing this 30ff underboost code since I've taken ownership of an '07 335xi at bone stock form, It looks like the easy guys on the intake side were replaced with silicone lines already, 30ff code and the reader is indicating that the charge air pressure is too low, Jun 11, 2022 · Definitely sounds like a boost leak, Reply BlaqueJezus • Additional comment actions Jun 28, 2015 · And the loss of power and torque is dramatic, much worse than having zero turbo boost, like 2 or 3 cylinders aren***8217;t firing, and it results in a very low frequency (subsonic) shuddering/vibration that you can feel more than you can hear (like you get when driving with windows down at hiway speeds, but worse), which is causing my shop to think that these are all tied together (other than the 2A87), There are a code 30FF ( Turbocharger, Boost Pressure Too Low“ ) I’m not sure what turbo line or vacuum line it is but you will have to replace turbo lines Car is in great shape runs and drives Mar 5, 2021 · -low pressure fuel sensor -oil pan gasket -water pump & thermostat -VRSF chargepipe w/ blowoff valve -dual cone intakes -a/c evaporator & expansion valve -boost solenoids- both of them -mishimoto oil catch can -just to note, all i have is a muffler delete done, stock downpipes, no tune, stock turbos, do have a fair amount of wastegate rattle, us My Yahoo! The blog discusses Turbocharger Boost Pressure Deficiency (TBPD) in marine engines, explaining its impact on engine performance and efficiency, It points to low voltage readings that can disrupt engine performance, The time now is 06:57 AM, Sep 27, 2023 · 30fc codeBMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > BMW 1 Series Coupe/Convertible Forums > Coupe and Convertible General Discussion 30fc code 30FF Turbocharger, charge-air pressure too low - Charge-air pressure too low, twitter Facebook Digg Google StumbleUpon del, Jul 1, 2018 · Discussion on resolving 30FF charging pressure control and low boost pressure issues in BMW vehicles with user experiences and potential solutions, Erased « Previous Thread Next Thread » Turbo Issues - Fault Code 30FE 3100 - Page 3 The smoke test will not show Boost leak in a lot of cases, you need to pressure test the intake system up to 15 to 20PSI pick as some boost leaks do not show up under low pressure, You can check desired boost pressure vs actual boost pressure if the PIDS exist, but that code is already telling you that the DME was monitoring those values and they don't match, The time now is , « Previous Thread Next Thread » 30FF turbocharger, chargeair pressure too low fsult In this video, I’ll share just how to check to see if you have a boost leak on your turbocharged BMW! BMW Boost leak? How to that 30FF code!Check Out My BMW Anyone else w/ 'DME-turbocharger, boost pressure too low' (Code: 0030FF)All times are GMT -5, Oct 30, 2025 · Possible causes of low boost pressure can be broken hoses, contamination build-up within the turbine or compressor areas, leaking seals, damaged shaft 30FF code, half engine lightAll times are GMT -5, Punched it from a dead stop and no problems, no change, Additionally, certain fault codes may apply to various non-N54 engines, Diagnosis involves checking for leaks in the intake, exhaust, and vacuum systems using a smoke machine, Finding out the reason for this issue can be complex since it may involve the turbos and other components, so a thorough review of the system components that work to give you a boost BMW N54 engines have been setting a 30FF fault code ever since the vehicles hit the dealerships in 2006, Side - Currently Present:Invalid Signal Johnny's Speed Shop 4, There are a number of things that could be causing this issue: chargepipe, boost solenoids, vacuum lines, actuators, bad turbos, etc, For turbo parts; around $1500-$1600 and installation would cost you $1000 at indy ( I do not know how much dealer would charge, " Aug 1, 2011 · This technical service bulletin provides troubleshooting steps for vehicles with N54 engines that have stored fault codes FC 3100, FC 30FE, and/or FC 30FF, related to incorrect turbocharger boost levels, Jul 22, 2016 · After installing a new (re-man) turbocharger the boost pressure increased and the maximum is now 1, 30ff: DME: Turbocharger, charge-air pressure too low, My first thoughts were “a coupler must’ve popped off somewhere” but alas, after checking through the engine bay, everything seemed to be on nice & tight, > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Low charging pressure -> FC 120308 / Long story / Thread Tools Bookmarks twitter Facebook Digg Google StumbleUpon del, 11 65 7 593 015, Turbocharger list $2250 11 65 7 649 291, Turbocharger list $2185, Oct 30, 2025 · Possible causes of low boost pressure can be broken hoses, contamination build-up within the turbine or compressor areas, leaking seals, damaged shaft Dec 28, 2007 · The customer complains that the engine management system has entered engine failsafe and that the turbocharger boost is reduced, †This fault code can lead you down many different paths, « Previous Thread Next Thread » Turbo Issues - Fault Code 30FE 3100 - Page 3 The smoke test will not show Boost leak in a lot of cases, you need to pressure test the intake system up to 15 to 20PSI pick as some boost leaks do not show up under low pressure, Essentially, this means your engine’s turbocharger is not delivering the expected boost pressure, Car was only boosting 4psi, Jul 6, 2018 · I know the 30FF code (low turbo boost pressure is related to a small crack on my valve cover which is causing a vacuum leak, One or both of the following faults are stored in the DME memory: 3100 Boost-pressure control, deactivation - Boost-pressure buildup prohibited; 30FE Turbocharger, charge-air pressure too high; 30FF Turbocharger « Previous Thread Next Thread » Having trouble with a boost leak? Jun 11, 2022 · Definitely sounds like a boost leak, , fuel pressure, crank sensor, cam sensor, knock sensor, etc, 7 or 1, 30FC turbo boost pressure too low: leak - tightness, ), then those faults will be the primary focus of the diagnosis, using the test plans provided for those faults, The turbocharger wastegate actuator may be stuck or malfunctioning, preventing proper boost control, 7 Bar, The rattle can be heard and felt throughout the entire exhaust and could lead a reasonable person to believe that they had an exhaust leak or a loose mounting bolt, E90 N54 30FF Yellow Check Engine Light (turbo charger pressure too low) fix!I also had a lot of wastegate rattle/noise, Nov 9, 2021 · The classical 30FF turbocharger charge air pressure too low, they are proposing a wastegate adjustment “Boost pressure too low, They initially checked for leaks, which led to the replacement of the "air intake duct" and valve cover gasket, as well as the turbo boost control valve, they confirm no obvious loose connections anywhere in the inlets, turbos, intercooler and charge pipe, Mar 29, 2025 · P0299 OBD2 Code: What Does it Mean? The P0299 code results from low air pressure coming to the turbine of the turbocharger, Pop-off valve and turbocharger operation should also E90 N54 30FF Yellow Check Engine Light (turbo charger pressure too low) fix!I also had a lot of wastegate rattle/noise, This air mixes with fuel to make the engine go, 30FE: 30FE Exhaust fume turbo charger, high pressure side EXPLANATION: ECU boost over ECU target FIX: Generally related to tuning, The article outlines troubleshooting steps, precautionary measures, and solutions to address TBPD to optimize engine reliability and performance in BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 30ff low boost pressure Thread Tools 02-19-2015, 04:10 PM # 1 335sss Private First Class 10 Rep 159 Posts Drives: rip-10 335 e90/current-09 e92 Join Date: Dec 2013 Location: Chicago 2C6C: DME: Oxygen sensor 2 after catalytic converter: System check 2D22: DME: Absolute-pressure sensor, intake manifold: signal 30FF: DME: Turbocharger, boost pressure too low Holy crap! Just looking at that has me going "where do I start", This normally means it will have either a boost leak, faulty boost solenoids or failing turbos, The scanner says boost pressure too low, If your tune is equipped with lagfix, the first step is to disable it, “DME: Turbocharger, charge-air pressure too low, 8 psi (normal), Cleared all codes and they did not return, Tried the "unplug a line from the canister" and E90 N54 30FF Yellow Check Engine Light (turbo charger pressure too low) fix!I also had a lot of wastegate rattle/noise, It details potential causes such as air leaks, restrictions, or aftermarket modifications, 30FF Trouble Codetwitter Facebook Digg Google StumbleUpon del, Oct 21, 2024 · The P0237 code is a significant indicator of issues within your vehicle’s turbocharger boost sensor circuit, After checking the last data log i noticed the E92 335i n54 is struggling to meet the boost target, Appreciate 0 Quote Jan 31, 2024 · What is Low Turbo Boost Pressure? Turbo boost pressure is the air the turbocharger pushes into the engine, All times are GMT -5, Sep 27, 2022 · You can increase turbo boost pressure by adjusting the wastegate opening, using boost controller, use high octane fuel or even upgrading to a less restricting exhaust system,