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BMW 3-Series (E90 E92) Forum
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Why do a MHD backend flash on Jb4?
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09-01-2019, 07:21 PM | #45 | ||
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What are examples of the safety features? I'm assuming for the E85 auto tune you need all the flex sensors and hoses? |
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09-01-2019, 09:19 PM | #46 | |
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The E85 autotuning can use a virtual sensor or one of our physical sensors. The virtual sensor is +-10% resolution so it's OK for some but for the best experience I of course suggest our physical sensor kit. One of the most popular JB4 features is the ability to change maps on the fly in dash. There is even a zero boost map in there you can toggle if you ever let a "friend" drive the car. You spend a little more on the JB4 hardware but then save on the mapping as BMS maps are all free/unlocked, and you don't need to purchase MHD maps or the logging package. The JB4 itself has resale value too so in the end it's really not any more expensive. |
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09-01-2019, 09:44 PM | #47 | ||
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07-01-2023, 08:49 AM | #48 | |
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I'm kinda new to this. But can you explain the jb4 setting and map you are using.. I've seen a few videos and threads of people saying you had to be on map 2 for mhd bef to work properly. I'd much rather use 5 and have it auto.
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07-01-2023, 06:26 PM | #49 | |
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From the JB4tech website: What do menu 4/2, 4/3 and 4/4 in dash do and which one should I select? Menu4 allows you to tell the JB4 whether you are running on the factory flash tuning (4/3 DEFAULT SETTING), a JB4 back end flash map (4/2), or want to run flash only (4/4) with the JB4 providing gauges and/or boost targeting only. |
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