Stock FAQs

how to flash bmw 335i ecu back to stock

by Dr. Hugh Wisozk Jr. Published 3 years ago Updated 2 years ago
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Connect any compatible Android device to your car using a standard K+Dcan cable along with an OTG USB cable. The first install takes only 15-35 minutes* and any map or option change later just 1-4 minutes*. You can flash your ECU back to stock anytime, as often as you need to.

Full Answer

How many flashes are allowed on a BMW ECU?

To play it safe, keep it plugged into an outlet. Your BMW only has 15 allowable flashes. After you pass this flash counter restriction, your ECU will lock and your car will not start. To “virginize” your flash counter, you can use MSSFlasher to do so.

What happens if you put a used ECU in a BMW?

Because if you install a used ECU in any BMW, the VIN number and Rolling Code will not match, and it will prevent the car from starting. The EWS was created for this very purpose. What happens is that the EWS system connects with the key transponder, but fails to properly communicate with the DME.

Is it safe to flash your BMW?

If you’re flashing via laptop make sure you have enough battery power for the entire flash. Keep in mind your laptop may go into power saving mode which may disable your connection/drivers. To play it safe, keep it plugged into an outlet. Your BMW only has 15 allowable flashes.

Can I run the motor with the new ECU firmware?

Benefit depends solely on the current ECU firmware versus the new ECU firmware if it contains anything beneficial. No you cannot run the motor. Flash TAL will put car in Transport Mode and shut down the Engine automatically.

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How do you flash a BMW ECU?

0:505:26How to do an ECU Flash on the BMW F80 M3 Competition by VRTunedYouTubeStart of suggested clipEnd of suggested clipOkay with the cable connected we want to turn the ignition on and once the ignition is on and allMoreOkay with the cable connected we want to turn the ignition on and once the ignition is on and all the lights are lit up on the dash. We can then start the programming procedure.

How do you flash a car back to its stock?

5:0115:42Flashing the 535 back to stock! - YouTubeYouTubeStart of suggested clipEnd of suggested clipRight there and then there's a option right here that says flash back to stock. And what that doesMoreRight there and then there's a option right here that says flash back to stock. And what that does is that it removes the image D by flashing back the stock program in calibration for your cards.

How do you flash back to stock MHD?

You can use the MHD to flash back your stock file and the easiest way is only to let MHD flash back the appropriate stock flash, just connect the MHD flasher and select flash back to stock, it will flash your ECU to stock without the need for your stock file if you want completely stock flash.

How do you flash a stock ECU?

6:4010:04How to Flash Your ECU (KTuner) - YouTubeYouTubeStart of suggested clipEnd of suggested clipClick on the little plus we've selected our factory ECU. Click next and then you're going to haveMoreClick on the little plus we've selected our factory ECU. Click next and then you're going to have those three Tunes. So if you see the first one you're going to see factory bass calibration.

Can you put a tuned car back to stock?

Returning the vehicle to stock will 'un-marry' the device and allow it to be used on other vehicles if desired. To use custom tunes on another vehicle with the same device, a new tune file will need to be created and loaded onto the tuner.

How much HP does a Stage 2 335i make?

HPF STAGE 2 | 290kW.

How much horsepower does MHD add?

Expected horsepower for the N55 MHD stage 2 tune comes in around 310-340whp. Boost targets are beginning to become aggressive enough to the point ACN91 falls behind normal 91 octane. With all of the recommended supporting mods on 93+ octane boost targets will likely run up to the ballpark of 16-17psi.

How much HP does MHD add N54?

Expect your N54 MHD stage 1+ tune to put you in the ballpark of 320-370whp. As with any of the N54 stages, 91 octane will result in lower boost targets and horsepower.

Can you flash an ECU back to stock?

Something else important to note is that the only way to return your ECU to stock is to "Un-Marry" your Access Port from your car. There are some stock maps out there that you can load onto your car, so it will be have as stock, but the difference is that your Access Port license is still on your ECU.

How much does it cost to have a ECU flashed?

about $250 to $300An ECU flash is undeniably more advanced and streamlined, and generally speaking it costs about $250 to $300 to have a shop perform a flash, which is actually cheaper than buying a Power Commander.

How do I reprogram my ECU at home?

0:291:55How to Reprogram Your Car's Computer - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo today i'm going to show you a new tool the flash 2 reprogrammer by cardone industries itMoreSo today i'm going to show you a new tool the flash 2 reprogrammer by cardone industries it reprograms the computer on your vehicle. Without taking anything off it just plugs into the dash.

How many flashes does a BMW have?

Your BMW only has 15 allowable flashes. After you pass this flash counter restriction, your ECU will lock and your car will not start. To “virginize” your flash counter, you can use MSSFlasher to do so.

Do you have to have a car battery tender when flashing?

We highly recommend you have your car hooked up to a battery tender to ensure your car battery doesn’t die on you mid-flash.

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How long does it take for the ignition to turn off on a 2014 F30?

On new cars (7/2014 F30) the ignition will not stay on even if you turn light switch. After 15 minutes or so ignition will turn off. This is not a problem though, just remember to cycle ignition before svt soll calculation and before starting TAL processing (actual flash).

Can you flash ZGW with E-SYS?

It is not necessary to flash ZGW separately, e-sys will flash it first. Connection via gateway doesn' t guarantee that the ZGW can be flashed with E-sys. If it fails, you must just vo-code any module and the car will wake up.

Product features

ProECU provides tuners with everything required in one simple software package. It includes detailed map definitions, high speed data logging with data analysis, and integrated ECU programming. There is no need to swap between different tools ever again!

ECU Connect

ECU Connect fully supports BMW F Series models fitted with the N55 petrol engine. It offers high speed data logging, dashboards, performance analyser testing, and read and clear engine DTCs.

Tuning results

Our in-house stage one tuning has produced an impressive increase across the RPM range. Peak power is up from 306bhp to 386bhp, peak torque is up from 300 lbs.ft to 400 lbs.ft (400Nm to 540Nm) running a modest 16 psi (1.1 bar) of boost.

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