The BMW N54 is bursting with opportunity and changing the tuning scene due to its easy horsepower and now inexpensive price tag. Starting back inthe N54 engine first hit the scene in the BMW i. It then made its way to the i in and a slew of other models all the way through So how do we get it? N54 TUNE. A tune will absolutely transform your N54 and increase power by almost hp!

Not a bad start, right? There are many tuning options out there for the N54 platform, but there are a few that stand head and shoulders above the rest. This piggyback tune flipped the N54 tuning game on its head.

Before it came about, only expensive flash tunes were available. There are many features that make this a great tuning option, among which is the unique ability to change tuning maps on the fly with your steering wheel controls! It comes with a well-designed programmer that hooks up to your OBD port.

With this unit, you can change the tuning program on your N54 to one of their off-the-shelf maps or a custom map. Another tuning option that has been becoming increasingly popular is the MHD Flasher tune. This is available as a download on Google Play. Most importantly, regardless of which tuning platform you go with, you will want to make sure you have access to a map that allows you to run E It may come as a surprise to some, but an N54 can pick up anywhere from hp from adding this eco-friendly alternative to the tank.

But the OEM downpipes are so restrictive that they prevent this simple increase in boost from being a safe option. By replacing your OEM N54 downpipes with catless or high-flow catted downpipes, you allow more flow through your exhaust system, and now you can increase the boost!

335i n54 Boost Solenoid Check DIY

Expect gains of approximately 50HP when upgrading the downpipes and flicking the switch to Stage 2 tuning. The difference in power gains from a catless downpipe compared to a high flow catted downpipe are only a few horsepower. If you want the absolute maximum power available, go with catless. In addition to prepping your BMW for increased boost, upgrading your downpipes will also improve your turbo spool times. Being able to move more air, the turbos on your N54 can now hit target boost sooner.

Yes, it will get louder.Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the Amazon community. Please make sure that you are posting in the form of a question. Please enter a question.

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n54 boost solenoid upgrade

Your transaction is secure. We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. Learn more. Ships from and sold by Forwin Automotive. Coverage for mechanical breakdowns begins after the manufacturer's warranty expires.

Fully transferable if bought as a gift. Not valid on auto parts purchased for commercial use. Visit assurantclaims. To cancel, visit "Your Orders" on Amazon. Add No Thanks. Have one to sell? Sell on Amazon. Image Unavailable Image not available for Color:. This fits your. Compare with similar items.The BMW N54 engine might be the best tuner engine of all time…at least we think so.

Hopefully I can get some Toyota fans to read it so we can stir up some drama. Anyways, back to the point. In fact, the N55 engine was slightly dialed back in an attempt to tame some of the common engine problems of the N Be sure to read our guide on the N54 vs. This post is going to cover the most common N54 engine problems, along with the symptoms and error codes to be able to identify them.

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On top of that, I will cover general maintenance tips to reduce the possibility of these engine problems, as well as repair and replacement options in the case that you fall victim. We will touch on all of these in-depth, focusing on the symptoms of each problem, the performance impact, and the repair options. If you are in the market for an N54 powered BMW and just read that list, you are probably reconsidering your choice.

It definitely did when I was looking for my i…but the substantial difference in tune-ability between the N54 and N55 is what brought me back. My i is a 10 years old already! And my warranty is up. But the truth of the matter is, while some of these problems are inevitable, the majority of them are preventable.

Read on and we will cover each N54 problem. You guessed it, the N54 high pressure fuel pump is responsible for injecting fuel into the engine. The HPFP feeds fuel through the injectors, which directly supplies the engine with gasoline necessary for combustion.

If your HPFP fails, your engine will not get the fuel it needs to run. Sounds like a big problem? It is. Fortunately, BMW realized that, and warrantied it for 10 years ormiles. If you own a higher mileage N54, it is likely that you have had your HPFP replaced at one point in time.Remember Me?

Is it a boost leak or just a bad boost solenoid? I was running a map that should have been pushing 21 psi without issue, but I was only hitting Two week later 13 psi. Normally if you had a boost leak and you were dropping almost 10 psi you would hear the leak.

n54 boost solenoid upgrade

Last weekend I checked my clamps and all was good so today I bought a new boost solenoid. Install took 20 min because I removed the intake inlet so I had room to work. I still dropped the F'n bottom nut trying to install the solenoid.

Murphy's law Good news It was the solenoid and my car is boosting harder than it has ever boosted. Actually need to turn things down a bit. It's a simple fix Appreciate 4. Thanks for the post! Did you ever have any codes come up? Every once in a while my car gets all pissed off and jumps into limp mode.

I have to stop and restart to get rid of it. Had my laptop on one occasion and it came up as an exhaust leak? Haven't had time to dive into it just yet I know there's a possibility of a boost leak as I slapped together a tube to the intercooler as the cx racing piping wasn't even close lol.

Appreciate 0. Originally Posted by sean Appreciate 1. Dackelone How does one properly test this component instead of just throwing money at it? Sounds like it's a progressive failure Originally Posted by ianc. First Lieutenant. For the past year, my car hasn't been pulling as hard as it had despite my running a JB4. It wasn't boosting consistently, felt "dead" after about 3, rpm, and I attributed this to the JB4 because it seemed to happen so gradually.

n54 boost solenoid upgrade

Dead, flat, no pull whatsoever. I was boosting around 7psi or so, but apparently that's not enough of a drop to throw a code, which I never threw.

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I knew the boost solenoid was a possible culprit but figured it could also be my vacuum lines or something on the intake track which I spent quite a bit on for a smoke test at my local shop. Installed it this afternoon, and lo and behold, I have my boost back. The hardest part was getting the vacuum hoses off which took me using a pick tool to loosen them up, though the nuts are a bit of a pain to get off and back on.

Should take no more than minutes. Bottom line, if anyone's down on boost, isn't throwing a code, and hasn't replaced this thing yet 40k miles on minestart here and see if it fixes the issue.

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N54 Master Problems List

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n54 boost solenoid upgrade

Thread starter Twisted Tuning Start date Jan 18, Tags bmw boost control boost control solenoid dme only n54 single turbo twisted tuning.

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N54 Master Problems List

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Platinum Vendor. Oct 25, New York. Couple live photos of the solenoid Oct 18, 8, AZ. Sweet, when do you anticipate being able to look into it? Nov 7, 1, Philly. So do you have to use push connect lines?

Currently just waiting on my EV1 connectors to come in makes the solenoid plug and play directly to the factory harness. Should have been here a while ago, but looks like they'll be delivered tomorrow. Just giving a brief update. Twisted Tuning said:. Make sure you bench test it with a Hz signal first. Very easy to overboost if it doesn't really respond to that high Hz, good thing for DME throttle safety ask me how I know haha. Nov 3, Small update, so i just wanted to install the Solenoid on the car and make sure nothing freaks out the DME.

Not really anything scientific. But bypassed the Rear stock solenoid vac lines and have everything running off the Front single factory solenoid.

Disconnected the rear factory solenoid and plugged in my solenoid. Been running it since yesterday and the DME notices no change.

Unplugged it to make sure and popped a signal code. So the DME is registering that its there. So step one done. Just wanted to see if the DME would freak with it installed.Forums New posts. Garage New media New comments. Resources Latest reviews. Log in Register. New posts. Thread starter Twisted Tuning Start date Jan 18, Tags bmw boost control boost control solenoid dme only n54 single turbo twisted tuning.

Forums Platinum Sponsors Twisted Tuning. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Twisted Tuning Lieutenant. Platinum Vendor. Oct 25, New York. Well this is something I've been working on for several months in the background of everything else going on here at Twisted Tuning. I've mentioned this little project probably larger meaning to some to a couple people here and there but never made an actual post about it.

The N54 game has been making leaps and bounds in terms of progress and available support for higher power and features needed to get these engines over hurdle after hurdle.

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And one of the things we have all seen become an issue is boost control solenoids going bad as well as boost control for single turbos. Currently this project is more catered toward single turbo boost control focus because they seem to need it most. But this may crossover to upgrade replacements for the OEM vacuum solenoids later on. I started this project because I did not like the options available for boost control install single turbo converted cars.

Tough part for the solenoid is the OEM solenoid operate at a higher than normal frequency which makes most other available EBCS options not compatible with using the factory DME to control them. So I'm looking to makes things easier and change that. Sshec Corporal. Nov 3, Aston pa. Does this replace or supplement a mac solenoid? Sshec said:. Oct 18, 8, AZ. So how does this stack up to say the BoostBox?

Jan 16, Any ideas on what the price may be once available? Nov 5, Kansas. Sign me up! I'll be running one as soon as they become available, getting my single kit next week and was wondering what I was going to do about boost control. I don't think it's out yet, a buddy and I are both installing the same kit.

Just want to make a post about some something really quick. As it was brought to my attention that some people were telling other vendors that I was bad mouthing the BoostBox in my postings about my coming solenoid solution testing and etc.

Straight to the point. If something was taken out of context. Which after speaking to the vendor. It was.Forums New posts. Garage New media New comments. Resources Latest reviews.

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The 8 Most Common BMW N54 Engine Problems – Common Failures and Performance Issues

New posts. Thread starter Twisted Tuning Start date Jan 18, Tags bmw boost control boost control solenoid dme only n54 single turbo twisted tuning.

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First Prev 2 of 5 Go to page. Nov 5, Kansas. Why not just use the wg spring until you can get things done properly? Twisted Tuning said:.

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Running off the spring is just fine as long as the car is tuned for it. I'm not a fan of MBC's. Some will say use the JB4, but then you're stuck with JB4 logging. Which is sub-par to MHD logging. Twisted Tuning Lieutenant. Platinum Vendor. Oct 25, New York. Cus bewst, it's not a huge deal I can just run off the WG hah Yea I sold the jb4 a while back, I'll look into those other controllers but I'd prefer not to drop money on that then turn around and get your ebcs or the boostbox.

Oct 18, 8, AZ.


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