N54 30ff wastegate. 30FF is boost under target, possible boost leak.

N54 30ff wastegate 6 @ 97mph on the 1/4 mile. Which means not enough air is being forced into engine according to the DME. Retightening it will also help eliminate or at least tone down the wastegate rattle. Essentially, the wastegate isn’t receiving enough pressure to reach its target. Troubleshooting . This is the cause of the following code:30FF DME: Turbocharger, charge-air pressure too N54the 30FF Fault Code August 2021 bimmer pub® Curing the BMW N54 30FF Fault Code By Andrew Hueter. Happened with or without a tune installed. I found it easier to remove the boost solenoids to replace all of those lines. Dec 14, 2019 · To be fancy, the solenoid is used to bleed boost pressure off of the hose that controls the wastegate actuator, which is what controls the opening and closing of the wastegate. The 02 sensor fault also needs to be addressed as soon as possible. when my friend gave it light revs at home Wastegate rattle usually won't trigger a 30ff code. Turbo is unable to generate boost because the wastegate valve can't close completely, preventing the exhaust turbine from receiving energy, or more sinister failure such as worn or seized bearings; 2. With line 5 clamped you will separate each wastegate and essentially test one vacuum circuit at a time. com **BMW N54 twin-turbo engines are notorious for "waste Apr 29, 2015 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 30FF Boost under target - Shop says I need new turbos These are actuated by the "wastegate solenoids" which ar Today, we get to the bottom of why my 335i isn't building boost by testing the N54 turbo wastegates! This is a quick video on how I fixed wastegate rattle on my n54 bmw 335xi. 30ff faults can be hard to diagnose especially for an intermittent failure. 5k rpm. which is causing my shop to think that these are all tied together (other than the 2A87). Apr 11, 2021 · 30ff n54 Jump to Latest 2. I have to adjust it every couple of Oct 10, 2012 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Symptoms of a bad wastegate control solenoid (pressure converter) Most of the lines are pretty easy and visible. I also talk about some of the Apr 8, 2014 · Wastegate binding, not moving smoothly Stays stuck open most of the time triggering a 30FF code (underboost) and sometimes stays stuck closed, triggering Aug 21, 2014 · 30FF is the inlet manifold pressure not reaching that being requested from the turbocharger. I wanted to pass the knowledge on in one simple post to help all the new n54 owners. What could be causing this? 2007 335i N54 Intake Charge pipe w/ bov 5” intercooler Muffler delete Currently on stock tune Here is a log BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > WOT, 100mph, half engine light, no limp mode, 30ff BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > HELP PLEASE: Intense Wastegate Rattle, CC-ID 29, 3100, 30FE, 60K Miles, JB4, DCI, DP This is not a permanent solution, what helped me might not help someone else, just sharing what i found out The N54 turbochargers have been known in at least the U. The pin was still going through the eyelet of the actuator, but it has broken off the pivot arm. It could be caused by a vacuum leak (e. This turbo underboost fault code is so common on the N54 that we wrote an entire post about it. i aim for 13s sometimes but Apr 14, 2016 · The more fix (more lag) you do, the further it tells the wastegate to be away from the outlet. Sep 9, 2012 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > vacuum line fix - low boost, underboost, 30ff, wastegate rattle BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Turbo Issues - Fault Code 30FE 3100 Aug 30, 2016 · The N54 has was used in a wide range of BMW’s starting in 2006 with the 335i. I toss a 30FF on my 6AT when i hit the kick down or do WOT. Nov 30, 2014 · We decided to share this great DIY on boost leak testing that was contributed to the N54 community a long while back and is still very useful for those running into issues with underboost codes, limp mode due to a boost leak in their charge piping. 5 0-60mph. When not trying to boost, it runs fine. I have done a boost leak test and tested the wastegates so I am sure it’s not either of those. Clue #2 Boost on fuel for the JB4 on map5 shows 0 gas meaning no boost Mar 10, 2020 · The vacuum system involved with PWG control is a big downside. Repair the Wastegate Valves ** I now do turbo rebuilds or will buy your car outright! Contact me for inquiries - berga610@gmail. When you get a low boost fault 30ff it could be this. The first one of the VTT Turbo Basics series is about wastegate duty cycle, what it means, when it matters, and some very basic concepts. Then use a vacuum gauge and pump it to max vacuum and see if it holds. Engine light clears after switch off but any kind of sustained load on restart and its right back on. If the wear is severe enough the wastegate will not seat properly resulting in a loss of boost pressure and trigger engine fault 30FF which temporarily reduces power output. E90 N54 - Reaching Boost but then wastegates open, 30FF failure 11-20-2016, 04:20 PM Bought a 2007 BMW 335i recently, only to find out 10 mins after completing the sale and picking it up that boost was weak, it wasn't reaching boost pressure and 30FF fault came on. Vacuum lines and boost piping look good. Do at your Mar 28, 2020 · 30CF (12495) – Wastegate, input signal; N54 30FF (12543) Fault Code. N54. Mar 5, 2019 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Do i have a stuck open wastegate? Google Search Oct 7, 2023 · BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications: N54 Wastegate 0% duty cycle Just bought an E90 335i recently and am new to the BMW scene (comin from audi) and the N54 engine. The line that goes to the front wastegate is easier if you remove the vacuum tanks and bracket. 1-is going to be the vacuum hoses from the vacuum pump supply hoses, to the solenoids, to the vacuum reservoir, to the wastegates -inspect for shit/degrading/oil contained hose and replace -remove all the hoses from the retained which may have the hose in a pinch -ensure the vacuum reservoirs are holding vacuum -take the vacuum lines off the New Turbos, wastegate rattle still present. Dec 16, 2023 · Hello, Here is a brief description of my config Hybrid Turbos TTE500 (change because the old one was an issue with wastegate Flappers) BMS DCI, Charge Pipe with Tial, BOV Vaccum Adapter FMIC 5" from ARM Silicon Inlet and ******* ******** Of course, i use BMS JB4 For the moment i wait for my TMAP 3. Clue #1 I had a ton of wastegate rattle before with the original vacuum lines and the car has 161k miles on it. Mar 23, 2017 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > No boost, 30FF, out of ideas Google Search So I have 19t v3 in the car upgraded inlets and chargepipe and intercooler for the past couple of months ive been trying to track down this boost… Jan 27, 2015 · If you’ve been around the N54 scene long enough or even owned an N54 for while, especially a tuned one, you know that there are countless N54s out there that have had an experience with either overboost (30FE) or underboost (30FF) induced limp mode issues that otherwise could’ve ended up in a tune that knocked damaging the motor potentially BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > vacuum line fix - low boost, underboost, 30ff, wastegate rattle Feb 14, 2023 · Music from #InAudio: https://inaudio. “DME: Turbocharger, charge-air pressure too low. 5 turns, on the rear turbo. So, the 30FF is odd - wasn't normal before JB4, so I figured it might be a boost leak from running at over-stock Boost leak testers are super easy to make and every n54 owner should have one. Some common sings of turbocharger wear includes. I even tried connecting a Mityvac to both wastegate actuators and manually applied vacuum as I drove to see if I could make any boost at all. Apr 15, 2015 · Towards the end of my track day, I got a 30FF engine malfunction light. Jun 19, 2020 · Dropped the car off this past Tuesday at the dealer and they were able to find that the c-clip associated with the front bank turbo wastegate actuator rod had let loose/flew off somehow. Jul 3, 2020 · I've had 30ff codes getting progressively worse and at lower boost levels for the last 12 months. This issue can be enough to cause the N54 30FF engine fault code to trigger. i've done a smoke test, no leak, outside of trying to pull the car it drives completely fine Hey Guys! I've recently brought myself a 2007 E93 335i SE and I've taken a big risk in buying one with a wastegate issue I purchased the car with 80k on the clock, full BMW service history The rattle is caused at the wastegate shaft and bushing on the turbine side. The second is when the actual wastegate pieces are rattling in the housing -this means they're worn out and need to be replaced. May 21, 2023 · Thanks for your reply. BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications I had wastegate rattle starting about 70k miles ish and it was not bad enough to be covered under the emissions warranty of 82k/8 years period. I've tried: Replacing all vacuum lines Pressure testing the system Vacuum testing Checking solenoids Checking wastegate actuators All with no luck. Shown here: Vacuum line connection at rear wastegate actuator Check out this turbo I found in my local junkyard from an N54 engine. You should be holding vacuum on both and wastegate moving freely. Adjust your wastegate actuator arm. Bimmerpost ☰ Model Selection. Aug 10, 2023 · Sometimes when I run Map 1 or even Map 0 under high (or even medium, say uphill) acceleration I'll get a 30FF and a half CEL (limp mode). This is the cause of the following code:30FF DME: Turbocharger, charge-air pressure too Apr 22, 2020 · (04-22-2020, 06:30 PM) MarcoHdH Wrote: Hi, can anybody help me, this N54 stored fault code 30FF boost to low with Stage 1 in Stock runs the engine without problems. 5. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018 30FF is boost under target, possible boost leak. Turned out to be caused by classic N54 "wastegate rattle," where the wastegates wear so much that the pushrods need Aug 4, 2021 · SO this is a quick video on how to see if your boost solenoids are bad. i wonder what the dme is targeting for AFRs during this. I havent tested the wastegate or the turbo because i have no clue Mar 4, 2021 · Hello everyone i have a 09 bmw 335i e93, coming upon a year of ownership, i've done alot of maintenance to it i will include a list at the end of this post, my problem is everytime i do a light/medium acceleration i get a half check engine light, and the only code reading is a 30ff- low boost pressure. I am getting a 30FF code at WOT so I took a data log and it appears that the wgdc is dropping before boost. Aug 6, 2012 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Wastegate Vacuum Lines - 68,000 miles. Also watch the wastegate to ensure it moves freely. It sets a half-engine light for that run cycle, and stores a shadow code. (Boost Log is NOT N54 30FF Fault Code bimmerthe pub August 2021 Technical Knowledge for Independent BMW Service Professionals ® Curing the BMW N54 30FF Fault Code Shown here: Vacuum line connection at rear wastegate actuator By Andrew Hueter Understanding the BMW twin turbocharged N54 engine operation and diagnosing and repairing failure points Apr 26, 2016 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: N54 Turbo Wastegate Flapper Replacement Google Search Search Forums When the actuators for the wastegate begin malfunctioning or require adjustment, you will start hearing a ticking noise as the engine turns over. , vac leak to wastegate actuators), but vac leak is not the 1 and only cause for 30ff. Sep 18, 2014 · N54 (335i) 30FF ei ahda ongelmat DIY 18-09-2014, 11:13 Wastegate rätisi kuukauden-pari, ääni voimistui loppua kohden kunnes puolikaasullakin auto heitti limp Jun 28, 2020 · Turbochargers can last a long time, however they can also fail requiring replacement. 8 SS washers and glue them together (do this twice) and then put them in-between the turbo & actuator housing. Engine Fault Code 30FF. I wanted to thank everyone and the forum for helping me fix my annoying wastegate rattle issues. - Both Cracked, 1 really bad - It's important to note that with the N54 the vacuum keeps the actuators shut which is opposite of many other manufacturers where vacuum is used to open the wastegate(s) - A healthy WGDC around is around 48-55 during a 3rd year pull The rattle is caused at the wastegate shaft and bushing on the turbine side. Thanks everyone for the support and help. The 30FF code is more likely caused by the wastegate shaft and flapper not sealing well against the housing. its reading 14s and thats "supposedly" way too lean for the targeted boost. Now to work out how to remove the rear turbo. Inability to reach commanded boost pressures can be caused by boost leaks but also bad turbos, wastegate leaks, vacuum issues controlling the wastegates. I checked carefully and Google searched quite a bit, Symptoms: - ticking loud during start of the engine - wastegate rattle after pushing the peddle and letting of the gas - 30FF goes off usually 20 minutes into drive - Logs, PSI are about 5 PSI lower than target BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > vacuum line fix - low boost, underboost, 30ff, wastegate rattle BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 30FF code, half engine light Google Search Sep 12, 2018 · Instructional video to demonstrate the replacement process for wastegate flappers. Hit up YouTube and search 'adjust wastegate actuator rod N54'. The “rattle” that you hear when you experience this common engine problem is the Wastegate actuator arm/rod improperly functioning from general engine wear and tear. Aug 19, 2019 · N54 wastegate vale control issue 30ff code. The car tested 14. Das passende Repsatz findet Ihr in u BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 30ff, loud turbo sound w/ log Google Search Oct 30, 2023 · 30ff code thrown. They all been fixed and still get off target boost 30FF issue. always 2-3psi off target when partial throttle. they are proposing a wastegate adjustment I bought my 335xi with a blown engine. . At first I figured it was just a boost leak due to still hitting 13/14 psi, but now I am down to about 0 and will pop a code anytime even moderate throttle is above 3k. I can't hear the turbos spooling at all. 7 psi) at one surface and whatever pressure is applied to the other surface. 2007 335xi, ~90k engine miles. I got a great deal on this car partly because there was a performance issue. I just replaced the boost solenoids as that solved someone else's similar problem. The lines going to the wastegates are a pain but you can get them. Leaking vacuum lines or problematic pumps may cause 30FF under-boost codes. The rear wastegate rod is free. I also share some ideas on the oil burn which is related to the turbos. So when I do a cold start the car has wastegate rattle and after like 30 seconds it goes away, it has wastegate rattle on deacceleration like any other normal N54. I had a 602 whp 335is that developed a boost leak one day and at WOT it sounded like someone was letting air out of a balloon with the neck stretched behind the dash. org/ Track Name. N54 Wastegate Rattles Symptoms Low boost pressure causing a 30FF fault. It does have wastegate rattle on startup that goes away after a minute or two. This is a quick video on how I fixed wastegate rattle on my n54 bmw 335xi. Shaky starting the engine; Noisy/loud boost solenoids (most obvious) 30FE engine fault code; Wastegate rattle Hey everyone. I am working on my turbo upgrades and this was just a step in the process. In this video I upgraded my wastegates and bushing. i rarely go over 4k rpm, but on the way back to the house when I did, there was a complete lack of power and low end torque. Usually they leak internally causing them to not pull the wastegates shut enough to b Jan 9, 2021 · Hier ein Video wie Ihr die Wastegate Klappen von eurem Turbolader BMW 135i/ 335i/ 335xi/ 35i mit Motorcode N54 tauscht. Jan 23, 2018 · N54 Turbo Wastegate Repair Questions. I have a randomly occurring one on my car. you should be closer to 12s because most tuners would rather target richer mixtures because its considered "safer". They have def been known to fail. It also exhibited the audible wastegate rattle. Jul 25, 2020 · Well that didn't take long, already have a 30FF within a week of buying this car. I have done smoke/boost leak testing and found some minor leaking. Like I said, most of the time I drive like a normal person and I keep it on Map 0 for comfort. 5 to use BEF maps. Bad turbos (worn wastegate bushing, wastegate rattle issue). This kit includes the following. I'd had both of my wastegate actuators replaced and it seems as if the mechanic split one of the the vacuum hoses that go to the wastegate actuators when he did the wastegate job. Some people are able to pull it out so that it doesn't bang against metal and the rattle goes away. com article, and I have done boost leak testing on Subarus and Audis. Even when full vacuum was being sent to the wastegates, there was still slop in the lever indicating the wastegate wasn't closing completely. Nov 13, 2016 · The rare ones who did not get an 30FF code, had a fairly obvious problem like not enough vacuum to the wastegate or major wastegate joint slop. (Bo We decided to share this great DIY on boost leak testing that was contributed to the N54 community a long while back and is still very useful for those running into issues with underboost codes, limp mode due to a boost leak in their charge piping. Symptoms - feels like no boost at all. n54 wastegates are common. Ensure wastegate should vacuum. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > E36 N54 Swap No Boost, No 30FF Code Google Search Oct 19, 2015 · Some of you may remember that I've been trying to fix a 30FF problem I've had since I bought the 5 series 6 months ago. This will require you to fish them on the bolt with a magnetic pick 14 votes, 24 comments. 4K views 3 replies 3 participants last post by tyeske Apr 12, 2021 How To Adjust Wastegate Actuator Arm BMW 335i 135i 535i x6 z4 N54Here is the Collection of Videos That I made to Help You Fix Your Wastegate Rattle Problem. There are two main functions of the vacuum in the N54. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Need advise 30FF waste gate stuck Google Search Okay I'm going to lay out my typical diagnosis. Nothing. We're pretty excited about these and have some other really awesome ones coming soon too. 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". Mine goes away at about 20% on the MHD slider (80% lag) but it is pretty laggy obviously and even through 30FF underboost codes. In the event that the wastegate bushings are absolutely destroyed you can have new bushings installed for a very significant savings. Engine. Please help, i cant get rid of my 30FF code. Replacing this pot will NOT fix any wastegate rattle issues. Car is bone stock. With the wastegates open (no vacuum applied), the car sounds like an n54. In 2007 it was used in the 135i and 535i. Jun 5, 2016 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Troubleshooting - 30FF low boost (BAD WASTEGATE!) Last, would your turbochargers themselves. This turbocharger repair kit will restore function and performance back to your turbos (front and back) and fixes the common wastegate rattle. Check the usual points for boost leaks-- intercooler connections, throttle body connections, etc. Symptoms of Bad N54 Boost Solenoids. Turned out to be caused by classic N54 "wastegate rattle," where the wastegates wear so much that the pushrods need N54 e60 30FF code So I have a 2008 bmw 535xi and recently got the 30ff code iv checked for vacuum line leaks haven’t found any cracks yet checked the charge pipe and besides it being dirty it looks okay but the diverter valve nearest to the front of the car seems really dirty. Midshift Private. Nov 22, 2016 · We've been working on a series of articles to help educate the N54 crowd. These are prone to loosening up over time and will cause the wastegate rattle. The wastegate is connected to a diaphram that is moved by the differential pressure between the atmosphere (nominally 14. The first is to power the brake booster and the second is to operate the turbo wastegates. Although one tick is possible, it is usually an ongoing audio cue. Then do the same for the other turbo vacuum line. Dec 1, 2014 · We decided to share this great DIY on boost leak testing that was contributed to the N54 community a long while back and is still very useful for those running into issues with underboost codes, limp mode due to a boost leak in their charge piping. Simply removing down pipe and applying vacu Ensure proper movement of wastegate. 6. Br Marco 30FF is usually a wastegate underboost fault code. I show you what I did to fix the error as well as walk through the steps y Jun 9, 2018 · My wife's '07 E90 335xi auto throws a 30FF any time you try to boost, and there is no boost to speak of. The car has been flashed back to stock and apart from 30ff, no other fault codes. 19-08-2019, 20:16 PM, Post: #1. Rattly but i cant decide whether its typical injector noise or wastegate rattle. You need to turn the wastegate actuator bolt 2. NobodyAfter the frustration of used actuators failing I decided to bite the bullet and purchase a brand It does have wastegate rattle but im already planning to do the turbos after the road trip. I started getting boost 30FF codes around 125k miles or so Apr 5, 2016 · Read the code, 30FF. also had a look at your tune and i dont like commenting on others tuning, but modifying knock Jul 27, 2023 · The exhaust note is super weird. As a result the wastegate was unable to properly function, as is was just flapping around. The pivot pin for the wastegate valve can wear prematurely on older turbos, but most of those have been replaced with redesigned ones. 68K subscribers in the BmwTech community. Upon reassembly, it would throw a 30FF (underboost) fault upon continued WOT for >6s. Well, took my car in today to get my 30FF addressed. Thread starter Midshift; Start date Jan 22, 2018; Forums. This causes low boost to be Mar 2, 2020 · Wastegate rattle is usually one of two things: the first is just the flapper being held off the turbine housing and rattling. 1. This is normal and is adjustable in all modern tunes (wastegate rattle fix). The wiring or the sensor sounds to be damaged/faulty. kklobo Member: Posts: 160 Threads: 56 Thanks Received: 11 in 10 posts Thanks Given: 89. BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > N54 30FF after everything has been fixed Google Search Search Forums Low boost pressure causing a 30FF fault. Nov 30, 2017 38 17 0 In this video I will be showing you the process involved in replacing your wastegate bushings in your N54 stock twin turbos. Today I decided to smoke test to see if I could find any leaks I didn't hear. So In short, bank 1 was unable to hold boost. Check vacuum lines and vacuum reservoirs to make sure they are not cracked and leaking. S. Do at your BMW N54 engines have been setting a 30FF fault code ever since the vehicles hit the dealerships in 2006. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Troubleshooting - 30FF low boost (BAD WASTEGATE!) Feb 14, 2021 · After going over the engine for a couple hours, I can't find anything wrong with it. Repair the Wastegate Valves Mar 2, 2021 · Turbo wastegate can often be adjusted to fix low boost problems. I'm getting the 30FF code with low turbo pressure and have done some searching on possible causes. Later in 2008 it was introduced in the X6 xDrive35i and again in 2009 on the Z4 sDrive35i. The rattle is caused at the wastegate shaft and bushing on the turbine side. Now with the new lines i have zero rattle and make zero boost. This causes boost to remain under target, too. Important Note #2: this diaphragm could cause 30FF low boost fault codes but it would be rare. leaving my house (and the last few days of only casual driving) felt somewhat normal, i kept it under 2. With the wastegates closed (max vacuum applied), the exhaust note is SUPER raspy. In the front, you need to take two no. What I do find odd is it also has some wastegate rattle on acceleration up until like 3-4kish rpm and then it sounds like a normal turbo spooling. A subreddit for BMW technical support. Well under par your AFR sensor (aka front/upstream o2 sensor; aka o2 sensor before catalytic converter) is reading a lean condition. If it's too loose, it could cause a boost leak. and Canada to suffer from premature wastegate bushing wear which results in an audible wastegate rattle noise. Could it be the wastegate that causes something like that or would it be something else? any ideas where to look? 1. —————— Spent a lot of time the past week trying to diagnose a 30FF. I think people replace turbos on these cars far too often for simple wastegate issues. If the wastegate fails to open or close properly, it can result in improper boost control, leading to the triggering of the 30FF code. May 2, 2020 · N54 Throwing 30FC 30FF - lacks boost 05-02-2020, 03:40 PM. ” This fault code can lead you down many different paths. h Jul 7, 2018 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Can 30FF be caused by wastegate? Google Search This gives insight to how a turbo fails and how to test it. If you have the skills to remove Check out this turbo I found in my local junkyard from an N54 engine. Hi there, With the JB4 in the wastegate vacuum actuators are not getting any power according to the Dec 13, 2017 · In simpler terms, the wastegate controls the maximum boost pressure created by the turbos, which protects both the engine and the turbochargers. Understanding the BMW twin turbocharged N54 engine operation and diagnosing and repairing failure points. Saved me from spending $2k + to replace turbos. Additionally, PWG limits the precision of wastegate control. Car has a loud rattle for about the first 30 seconds on start up that subdues eventually. (Bo Jul 10, 2023 · Here are some of the frequent culprits behind the 30FF code: Wastegate Failure — The wastegate is a critical component responsible for regulating the turbocharger’s boost pressure. I would start from the top and work my way down the list. May 30, 2015 · Had a look under the car, and found the rear wastegate actuator was no longer attached to the wastegate pivot arm. g. Spent the money on a new set of wheel instead . I have read the N54tech. afaik the boost solenoids are original @ ~90k miles on this engine. BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications: Wastegate rattle and 30FF Code fixed!!! When the actuators for the wastegate begin malfunctioning or require adjustment, you will start hearing a ticking noise as the engine turns over. Oct 10, 2019 · N54 30FF code HELP!! Please 10-10-2019, 01:26 PM. The car also revs slow like a 328. bovyla jgmj tswvnb qwqzx zwafsizv pxcmxnq agyyag nvcddtp gkuip pdkluf fana xrzy vnboxk fccqrb xji